trigonometry

Related Questions

• $\sin (\pi +\theta )\sin (\pi -\theta )\,\text{ cose}{{\text{c}}^{2}}\theta =$

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• For $A=133{}^\circ ,\ 2\cos \frac{A}{2}$is equal to

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• The general value of $\theta $satisfying the equation $2{{\sin }^{2}}\theta -3\sin \theta -2=0$ is

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• In $\Delta ABC,$if $b=6,\,c=8\,$and $\angle A=90{}^\circ $, then R=

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• If ${{\sin }^{2}}\theta =\frac{{{x}^{2}}+{{y}^{2}}+1}{2x}$, then x must be

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