trigonometry

Related Questions

• If $\sin A=\frac{1}{\sqrt{10}}$and $\sin B=\frac{1}{\sqrt{5}},$where A and B are positive acute angles, then $A+B=$

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• If the sides of a triangle are in the ratio $2:\sqrt{6}:(\sqrt{3}+1)$ , then the largest angle of the triangle will be

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• The shadow of a tower is found to be 60 metre shorter when the sun’s altitude changes from ${{30}^{o}}$ to ${{60}^{o}}$. The height of the tower from the ground is approximately equal to

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• $\cos \frac{\pi }{7}\cos \frac{2\pi }{7}\cos \frac{4\pi }{7}=$

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• $\frac{{{\cot }^{2}}15{}^\circ -1}{{{\cot }^{2}}15{}^\circ +1}=$

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