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# A trigonometric identity is given by: cos^2(x/2)=(tanx+sinx)/2tanx Manibhushan K.
08/11/2018 0 0

A trigonometric identity is given by: cos^2(x/2)=(tanx+sinx)/2tanx

We would calculate each side of the equation, substituting.x=pi/2

sol.

>> x=pi/5;

LHS=cos(x/2)^2

LHS =

0.9045

RHS=(tan(x)+sin(x))/(2*tan(x))

RHS =

0.9045

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