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The value of (1-tan^2 15^@)/(1+tan^2 15^...

The value of `(1-tan^2 15^@)/(1+tan^2 15^@)` is equal to:

A

1

B

`sqrt3`

C

`(sqrt3)/2`

D

2

Text Solution

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JBD PUBLICATION-TRIGNOMETRIC FUNCTIONS-EXAMPLE
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  3. Find the solutions of the equation sinx=-sqrt3/2 when x in [0,pi]

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  4. Prove that:(cos7x+cos5x)/(sin7x-sin5x)=cotx

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  6. Prove the following: (sinx + sin3x)/(cosx + cos3x)=tan 2x

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  8. Find the radian measures corresponding to the followind degree measure...

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