Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMix Examples-Trigonometrical Ratios, Functions and Identities
Easy$(\sec A + \tan A - 1)(\sec A - \tan A + 1) - 2\tan A = $
- A$\sec A$
- B$2\sec A$
- C$0$
- D$1$
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Similar Questions
If $\alpha, \beta, \gamma \in \left(0, \frac{\pi}{2}\right)$,then $\frac{\sin(\alpha + \beta + \gamma)}{\sin \alpha + \sin \beta + \sin \gamma}$ is
Easy
View SolutionIf $\cosh 2x = 199$,then $\coth x$ equals
$3\left[ \sin^4\left( \frac{3\pi}{2} - \alpha \right) + \sin^4(3\pi + \alpha) \right] - 2\left[ \sin^6\left( \frac{\pi}{2} + \alpha \right) + \sin^6(5\pi - \alpha) \right] = $
DifficultIIT 1986
View SolutionThe value of $\cos ^2 10^{\circ}-\cos 10^{\circ} \cdot \cos 50^{\circ}+\cos ^2 50^{\circ}$ is:
The larger of $\cos (\log \theta)$ and $\log (\cos \theta)$,if $e^{-\pi / 2} < \theta < \pi / 2$ is
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