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#4401 2012-12-28 17:42:02

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,528

Re: 10 second questions

Hi bobbym,

The solutions #4508 and #4509 are correct. Brilliant!

Given sec θ = 13/12, find

#4510. cosec θ

#4511. cot θ


Character is who you are when no one is looking.

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#4402 2012-12-28 23:01:52

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,238

Re: 10 second questions

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#4403 2012-12-29 18:35:03

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,528

Re: 10 second questions

Hi bobbym,

The solutions #4510 and #4511 are correct. Good work!

In triangle ABC, right angled at B, if

, find the value of

#4512. sin A cos C + cos A sin C

#4513. cos A cos C - sin A sin C


Character is who you are when no one is looking.

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#4404 2012-12-30 01:12:15

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,238

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#4405 2012-12-30 18:34:13

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,528

Re: 10 second questions

Hi bobbym,

The solutions #4512 and #4513 are correct. Neat work!

#4514. In a triangle ABC right angled at C, if tan A =

, find sin A cos B + cos A sin B.

#4515. If cosec A = 2, find the value of

.


Character is who you are when no one is looking.

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#4406 2012-12-31 02:51:08

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,238

Re: 10 second questions

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#4407 2012-12-31 18:38:07

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,528

Re: 10 second questions

Hi bobbym,

The solutions #4514 and #4515 are correct. Neat work!

Evaluate :

#4516. sin 60[sup]o[/sup] cos 30[sup]o[/sup] + sin 30[sup]o[/sup] cos 60[sup]o[/sup]

#4517. 2 tan[sup]2[/sup]45[sup]o[/sup] + cos[sup]2[/sup]30[sup]o[/sup] - sin[sup]2[/sup]60[sup]o[/sup]


Character is who you are when no one is looking.

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#4408 2013-01-01 01:55:55

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,238

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#4409 2013-01-01 18:36:12

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,528

Re: 10 second questions

Hi bobbym,

The solutions #4516 and #4517 are correct. Good work!

#4518. If tan θ =

, then find the value of sin θ.

#4519. If sin θ = 5/13, then find the value of tan θ.


Character is who you are when no one is looking.

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#4410 2013-01-01 22:39:19

scientia
Member
Registered: 2009-11-13
Posts: 222

Re: 10 second questions

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#4411 2013-01-02 03:36:00

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,238

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#4412 2013-01-02 19:08:39

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,528

Re: 10 second questions

Hi scientia and bobbym,

The solutions #4518 and #4519 are correct. Good work!

#4520. Find the value of cosec[sup]2[/sup]55[sup]o[/sup] - cot[sup]2[/sup]55[sup]o[/sup].

#4521. If cot A = 20/21, find the value of cosec A.


Character is who you are when no one is looking.

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#4413 2013-01-02 23:02:59

scientia
Member
Registered: 2009-11-13
Posts: 222

Re: 10 second questions

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#4414 2013-01-03 02:35:09

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,238

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#4415 2013-01-03 18:21:47

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,528

Re: 10 second questions

Hi scientia and bobbym,

The solutions #4520 and #4521 are correct. Good work!

#4522. If cosec θ = 41/40, find the value of cos θ.

#4523. If cos θ = 3/5, find the value of (sin θ - cot θ)/2 tan θ.


Character is who you are when no one is looking.

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#4416 2013-01-04 19:15:54

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,528

Re: 10 second questions

Hi,

#4524. If tan θ = 4/3, find the value of (3sinθ + 2cosθ)/(3sinθ - 2cosθ).

#4525. If cot θ = b/a, find the value of (cos θ + sin θ)/(cos θ - sin θ).


Character is who you are when no one is looking.

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#4417 2013-01-05 19:04:06

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,528

Re: 10 second questions

Hi,

#4526. If

, find the value of

#4527.

= ?


Character is who you are when no one is looking.

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#4418 2013-01-06 03:32:30

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,238

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#4419 2013-01-06 04:57:43

scientia
Member
Registered: 2009-11-13
Posts: 222

Re: 10 second questions

Last edited by scientia (2013-01-06 05:46:33)

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#4420 2013-01-06 18:20:48

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,528

Re: 10 second questions

Hi,

bobbym : The solutions #4524, #4525, #4526, and #4527 are all correct. Outstanding!

scientia : The solution #4527 is correct. Excellent!

#4528.

#4529.

= ?


Character is who you are when no one is looking.

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#4421 2013-01-07 04:44:13

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,238

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#4422 2013-01-07 18:30:20

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,528

Re: 10 second questions

Hi bobbym,

The solutions #4528 and #4529 are correct. Excellent!

#4530. Find the value of

.

#4531. Find the value of


Character is who you are when no one is looking.

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#4423 2013-01-07 20:38:08

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,238

Re: 10 second questions

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Offline

#4424 2013-01-08 18:32:31

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,528

Re: 10 second questions

Hi bobbym,

The solutions #4530 and #4531 are correct. Neat work!

#4532. Find the value of

.

#4533.


Character is who you are when no one is looking.

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#4425 2013-01-09 04:47:31

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,238

Re: 10 second questions

Hi ganesh;



In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Offline

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