trigonometry

Related Questions

• If in a triangle $ABC,$ $\cos A\cos B+\sin A\sin B\sin C=1,$ then the sides are proportional to

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• If $\sin (A+B)$=1 and $\cos (A-B)=\frac{\sqrt{3}}{2},$then the smallest positive values of A and B are

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• In $\Delta ABC,$ ${{a}^{2}}+{{b}^{2}}+{{c}^{2}}=ac+ab\sqrt{3},$ then triangle is

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• The maximum value of $a\cos x+b\sin x$is

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• In $\Delta ABC$ , if $a=3,b=4,c=5$ , then $\sin 2B=$

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