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## #4401 2012-12-29 16:42:02

ganesh
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### 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.

## #4402 2012-12-29 22:01:52

bobbym

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### Re: 10 second questions

Hi;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #4403 2012-12-30 17:35:03

ganesh
Moderator

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### 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.

## #4404 2012-12-31 00:12:15

bobbym

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### Re: 10 second questions

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #4405 2012-12-31 17:34:13

ganesh
Moderator

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### 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.

## #4406 2013-01-01 01:51:08

bobbym

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### Re: 10 second questions

Hi;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #4407 2013-01-01 17:38:07

ganesh
Moderator

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### Re: 10 second questions

Hi bobbym,

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

Evaluate :

#4516. sin 60o cos 30o + sin 30o cos 60o

#4517. 2 tan245o + cos230o - sin260o

Character is who you are when no one is looking.

## #4408 2013-01-02 00:55:55

bobbym

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### Re: 10 second questions

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #4409 2013-01-02 17:36:12

ganesh
Moderator

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### 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.

scientia
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## #4411 2013-01-03 02:36:00

bobbym

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### Re: 10 second questions

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #4412 2013-01-03 18:08:39

ganesh
Moderator

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### Re: 10 second questions

Hi scientia and bobbym,

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

#4520. Find the value of cosec255o - cot255o.

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

Character is who you are when no one is looking.

scientia
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## #4414 2013-01-04 01:35:09

bobbym

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### Re: 10 second questions

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #4415 2013-01-04 17:21:47

ganesh
Moderator

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### 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.

## #4416 2013-01-05 18:15:54

ganesh
Moderator

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### 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.

## #4417 2013-01-06 18:04:06

ganesh
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### Re: 10 second questions

Hi,

#4526. If

, find the value of

#4527.
= ?

Character is who you are when no one is looking.

## #4418 2013-01-07 02:32:30

bobbym

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### Re: 10 second questions

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #4419 2013-01-07 03:57:43

scientia
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### Re: 10 second questions

Last edited by scientia (2013-01-07 04:46:33)

## #4420 2013-01-07 17:20:48

ganesh
Moderator

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### 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.

## #4421 2013-01-08 03:44:13

bobbym

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### Re: 10 second questions

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #4422 2013-01-08 17:30:20

ganesh
Moderator

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### 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.

## #4423 2013-01-08 19:38:08

bobbym

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### Re: 10 second questions

Hi;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #4424 2013-01-09 17:32:31

ganesh
Moderator

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### 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.

## #4425 2013-01-10 03:47:31

bobbym

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### Re: 10 second questions

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.