if sintheta1+sintheta2+sintheta3=3
then find the value of COSTHETA1+COSTHETA2+ COSTHETA3
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the answer is zero
since max value for sine is 1
hence Sina=Sinb=sinc=1
i.e a=b=c=90
so.
it is zero
since max value for sine is 1
hence Sina=Sinb=sinc=1
i.e a=b=c=90
so.
it is zero
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