sinФ1 + sinФ2 + sinФ3= 3
then whats the value of cosФ1 + cosФ2 + cosФ3
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costheta 1+costheta 2+costheta 3=0
UwaisJawed:
sis, can u plz explain
sin○1+sin○2+sin○3=3 , so we must have each of them as 1 and hence, ○1=○2=○3=90 and as cos90○=0. so, cos○1+cos○2+cos○3=0.
○=thetha
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