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

If `sintheta_(1)+sintheta_(2)+sintheta_(3)=3`, then `cos theta_(1)+cos theta_(2)+cos theta_(3)=`

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AAKASH INSTITUTE ENGLISH-TRIGNOMETRIC FUNCTIONS -Assignment section-A (Objective Type Questions (One option is correct))

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