If the real part of the complex number z=3+2icosθ1−3icosθ, θ∈(0 – InterviewSolution

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1.	If the real part of the complex number z=3+2icosθ1−3icosθ, θ∈(0,π2) is zero, then the value of sin23θ+cos2θ is equal to
Answer» If the real part of the complex number $z = \frac{3 + 2 i cos θ}{1 - 3 i cos θ},$ $θ \in (0, \frac{π}{2})$ is zero, then the value of ${sin}^{2} 3 θ + {cos}^{2} θ$ is equal to

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