trigonometry

Related Questions

• The smallest angle of the $\Delta ABC$ , when $a=7,b=4\sqrt{3}$ and $c=\sqrt{13},$ is

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• In a $\Delta ABC$ , if $2s=a+b+c$ and $(s-b)(s-c)=$ $x{{\sin }^{2}}\frac{A}{2},$ then $x =$

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• If $\tan \theta =-\frac{1}{\sqrt{10}}$and $\theta $ lies in the fourth quadrant, then $\cos \theta =$

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• $1+\cos 2x+\cos 4x+\cos 6x=$

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• If in a triangle $ABC$ right angled at $B,s-a=3$ , $s-c=2$ , then the values of a and c are respectively

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