If sintheta(1)+sintheta(2)+sintheta(3)=3...

If `sintheta_(1)+sintheta_(2)+sintheta_(3)=3`, then `costheta_(1)+costheta_(2)+costheta_(3)=?`

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3

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If sintheta_1+sintheta_2+sintheta_3=3, evaluate : costheta_1+costheta_2+costheta_3 .

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ADVANCED MATHS BY ABHINAY MATHS ENGLISH-TRIGONOMETRY -EXERCISES (Multiple Choice Questions)

If for real values of costheta=x+(1)/(x), then
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If (tantheta+cottheta)/(tantheta-cottheta)=2,(0^(@)lethetale90^(@)), t...
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