Express 1//(1-costheta+2isintheta) in th...

Express `1//(1-costheta+2isintheta)` in the form `x=i y` .

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The correct Answer is:

` A + B = (1) /(2( 1 + 3 " cos"^(2) (theta)/(2)))- i( "cot" (theta //2))/(1 + 3 "cos"^(2) (theta //2))`

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