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The complex no. sinx + i cos2x cosx-i sin2x are conjugate to each other if

The complex no.
sinx + i cos2x
cosx-i sin2x
are conjugate to each other if

Grade:9

1 Answers

Arun Kumar IIT Delhi
askIITians Faculty 256 Points
8 years ago

Hello Student,

\\$since$ \\\\\overline{sinx+i cos2x}=cosx-isin2x \\$equating real and imaginary parts$ \\=>tanx=1 \\=>$and $ tan2x=1 \\$both of them are not possible the same time$ \\$no solution$

Thanks & Regards
Arun Kumar
Btech, IIT Delhi
Askiitians Faculty

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