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#26 2006-06-23 22:58:51

fusilli_jerry89
Member
Registered: 2006-06-23
Posts: 86

Re: Trigonometry

ganesh wrote:

T # 8

If x*sin60°*tan30°=(sin45°*cot45°)/(cos30°*cosec60°), find x.

for this i got every part easily cept sin 45 because it equals a long decimal so it didnt seem right but i got 1.414

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#27 2007-04-23 07:21:27

Eeyore
Member
Registered: 2007-04-16
Posts: 8

Re: Trigonometry

The foot of the pole and the midpoint of the pole are in the same horizontal level. ??

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#28 2011-06-27 02:31:41

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,657

Re: Trigonometry

hi ganesh

T#7 θ=60°

T #8 I got x=√2

Last edited by anonimnystefy (2011-06-27 02:38:36)


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#29 2011-09-02 12:01:41

ShivamS
Member
Registered: 2011-02-07
Posts: 3,629

Re: Trigonometry

[hide]
#2
1/9
#3
266.67m high
#5
0.258819045
What happened to number 1 and 4?

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#30 2011-09-02 12:05:22

ShivamS
Member
Registered: 2011-02-07
Posts: 3,629

Re: Trigonometry

Oh wait, there they are.

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#31 2011-09-04 03:22:57

Stormtangent
Member
Registered: 2011-09-03
Posts: 33

Re: Trigonometry

7.

8.


"Have you ever had a dream that you were so sure was real? What if you were unable to wake from that dream? How would you know the difference between the dream world and the real world? "

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#32 2011-09-04 16:00:15

ganesh
Moderator
Registered: 2005-06-28
Posts: 15,152

Re: Trigonometry

Hi anonimnystefy,  Shivamcoder3013, Stormtangent, and fusilli_jerry89,

The solutions #7 and #8 are correct. Excellent!

#9. If two angles of on the base of a triangle are 22.5 degrees and 112.5 degrees, then what is the ratio of the height of the triangle to length of the base?


Character is who you are when no one is looking.

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#33 2011-09-05 12:15:07

Stormtangent
Member
Registered: 2011-09-03
Posts: 33

Re: Trigonometry


"Have you ever had a dream that you were so sure was real? What if you were unable to wake from that dream? How would you know the difference between the dream world and the real world? "

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#34 2011-09-05 17:18:16

ganesh
Moderator
Registered: 2005-06-28
Posts: 15,152

Re: Trigonometry

Hi Stormtangent,

The solution #9 is correct. Brilliant!


Character is who you are when no one is looking.

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#35 2011-09-18 09:51:08

Stormtangent
Member
Registered: 2011-09-03
Posts: 33

Re: Trigonometry

Any new problems here?  I'm up for some of these, as I need to hone my trig.


"Have you ever had a dream that you were so sure was real? What if you were unable to wake from that dream? How would you know the difference between the dream world and the real world? "

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#36 2011-09-19 17:51:49

ganesh
Moderator
Registered: 2005-06-28
Posts: 15,152

Re: Trigonometry

Hi Stormtangent and bobbym

#10. If

, find the angle A.


Character is who you are when no one is looking.

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#37 2011-09-19 18:25:15

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,582

Re: Trigonometry

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#38 2011-09-20 00:08:52

Maiya
Member
Registered: 2011-08-11
Posts: 124

Re: Trigonometry

guess its 30 degree

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#39 2011-09-20 00:21:13

ganesh
Moderator
Registered: 2005-06-28
Posts: 15,152

Re: Trigonometry

Hi bobbym and Maiya,

The solution #10 is correct. Good work!

[Please use the hide tag, Maiya, to hide the solutions]

[hide= The message to be hidden][/hide ]

#11. Find the value of

.


Character is who you are when no one is looking.

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#40 2011-09-20 00:23:14

Maiya
Member
Registered: 2011-08-11
Posts: 124

Re: Trigonometry

sorry i din't know that code
so whats the code????????

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#41 2011-09-20 00:25:51

Maiya
Member
Registered: 2011-08-11
Posts: 124

Re: Trigonometry

don't bother,............
i got it anyway

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#42 2011-09-20 00:27:21

ganesh
Moderator
Registered: 2005-06-28
Posts: 15,152

Re: Trigonometry

Hi Maiya,

Hope you get the code!


Character is who you are when no one is looking.

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#43 2011-09-20 00:30:32

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,582

Re: Trigonometry

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#44 2011-09-20 00:41:58

ganesh
Moderator
Registered: 2005-06-28
Posts: 15,152

Re: Trigonometry

Hi bobbym,

The solution #11 is correct. Well done!

#12. Find the value of

.


Character is who you are when no one is looking.

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#45 2011-09-20 00:46:53

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,582

Re: Trigonometry

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#46 2011-09-22 07:14:42

Stormtangent
Member
Registered: 2011-09-03
Posts: 33

Re: Trigonometry

Hi Ganesh,


"Have you ever had a dream that you were so sure was real? What if you were unable to wake from that dream? How would you know the difference between the dream world and the real world? "

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#47 2011-09-22 17:43:03

ganesh
Moderator
Registered: 2005-06-28
Posts: 15,152

Re: Trigonometry

Hi bobbym and Stormtangent,

The solution #12 is correct, bobbym! Excellent!

The solutions #10, #11, and #12 are correct, Stormtangent! Excellent!

#13. Find the value of

.


Character is who you are when no one is looking.

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#48 2011-09-22 17:58:56

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,582

Re: Trigonometry

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#49 2011-09-23 07:56:31

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,657

Re: Trigonometry

hi ganesh

the thread name is spelled wrong. smile


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#50 2011-09-23 12:13:27

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,582

Re: Trigonometry

Hi anonimnystefy;

I took care of it.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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