trigonometry

Related Questions

• The minimum value of $\cos \theta +\sin \theta $ is

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• ${{\cos }^{2}}48{}^\circ -{{\sin }^{2}}12{}^\circ =$

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• If the angles of elevation of two towers from the middle point of the line joining their feet be 60° and 30° respectively, then the ratio of their heights is

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• The angle subtended at the centre of a circle of radius 3 metres by an arc of length 1 metre is equal to

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• In $\Delta ABC$ , if $2s=a+b+c$ , then the value of $\frac{s(s-a)}{bc}-\frac{(s-b)(s-c)}{bc}=$

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