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Grade 9Magical Mathematics[Interesting Approach]

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

Profile image of Leo Pixie
12 Years agoGrade 9
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1 Answer

Profile image of Arun Kumar
12 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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