Practicing Success
The value of $\frac{\tan^2 \theta - \sin^2 \theta}{2 + \tan^2 \theta + \cot^2 \theta}$ is: |
$cosec^6 \theta$ $\cos^4 \theta$ $\sin^6 \theta$ $\sec^4 \theta$ |
$\sin^6 \theta$ |
$\frac{\tan^2 \theta - \sin^2 \theta}{2 + \tan^2 \theta + \cot^2 \theta}$ Put θ = 45º = \(\frac{tan²45º - sin²45º}{ 2 + tan²45º + cot²45º}\) = \(\frac{1- 1/2}{ 2 + 1 + 1}\) = \(\frac{1}{8}\) Now, by putting θ = 45º in all options one by one . And option 3 satisfied the condition. sin6θ = sin645º = ( \(\frac{1}{√2}\))6 = \(\frac{1}{8}\) Ans :- sin6θ
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