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Question

Mathematics Question on Trigonometric Functions

Which of the following is not possible ?

A

sin⁡θ=57\sin \theta = \frac{5}{7}

B

cos⁡θ=1+a21−a2,∣a∣≠1\cos\theta = \frac{ 1+a^2}{1 - a^2} , |a| \neq 1

C

tan⁡θ=100\tan \theta = 100

D

sec⁡θ=52\sec \theta = \frac{5}{2}

Answer

cos⁡θ=1+a21−a2,∣a∣≠1\cos\theta = \frac{ 1+a^2}{1 - a^2} , |a| \neq 1

Explanation

Solution

Answer (b) cos⁡θ=1+a21−a2,∣a∣≠1\cos\theta = \frac{ 1+a^2}{1 - a^2} , |a| \neq 1