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Complex Numbers question

2021 · 27 Jul · Shift 2 · Q38
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  5. /2021 · 27 Jul · Shift 2 · Q38

Complex Numbers question

2021 · 27 Jul · Shift 2 · Q38

JEE MainMathematicsComplex NumbersNumerical+4 / −1
If the real part of the complex number z=3+2icos⁡θ1−3icos⁡θ,θ∈(0,π2)z = {{3 + 2i\cos \theta } \over {1 - 3i\cos \theta }},\theta \in \left( {0,{\pi \over 2}} \right)z=1−3icosθ3+2icosθ​,θ∈(0,2π​) is zero, then the value of sin23 θ\thetaθ + cos2 θ\thetaθ is equal to ‾\underline{\hspace{2cm}}​.
Numerical answer
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