trigonometry

Related Questions

• The equation ${{(a+b)}^{2}}=4ab{{\sin }^{2}}\theta $is possible only when

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• If $\tan \frac{A}{2}=\frac{3}{2},$then $\frac{1+\cos A}{1-\cos A}=$

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• .Given that $\cos \left( \frac{\alpha -\beta }{2} \right)=2\cos \left( \frac{\alpha +B}{2} \right)$, then $\tan \frac{\alpha }{2}\tan \frac{\beta }{2}$is equal to

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• The value of $\cos A-\sin A$when $A=\frac{5\pi }{4},$ is

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• If the period of the function $f(x)=\sin \left( \frac{x}{n} \right)$ is $4\pi $ , then $n$ is equal to

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