Math, asked by Ziko9693, 1 year ago

If cosa +cosb+cosc = 0 then the value of k so that cos3a +cos3b + cos3c =k(cosa.cosb.cosc)

Answers

Answered by ManishJoshi

1

3(cosa+cosb+cosc)=k(cosa.cosb.cosc)
3(0)=k(cosa.cosb.cosc)
0=k(cosa.cosb.cosc)
k=0/(cosa.cosb.cosc)
k=0

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