Class 11MathematicsTrigonometric FunctionsFundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles
EasyIf $\cot (A+B)=0$,then $\sin (A+2 B)$ is equal to
- A$\sin 2 A$
- B$\cos A$
- C$\sin A$
- D$\cos 2 A$
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$1+\sec ^2 x \sin ^2 x=$
The value of $\tan \frac{\pi}{3} + 2 \tan \frac{2 \pi}{3} + 4 \tan \frac{4 \pi}{3} + 8 \tan \frac{8 \pi}{3}$ is equal to (in $\sqrt{3}$)
Find the degree measure corresponding to the following radian measure (Use $\pi = \frac{22}{7}$): $\frac{11}{16}$ radian.
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View SolutionIf $y = \log_e \tan \left(\frac{\pi}{4} + \frac{x}{2}\right)$,then $\tanh \left(\frac{y}{2}\right) = $
Let $\triangle ACB$ be a triangle with a right angle at $C$. Let $AB = 29$ units,$BC = 21$ units,and $\angle ABC = \theta$. Then $\cos^2 \theta - \sin^2 \theta = $
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