Math, asked by Vivekmakwana, 11 months ago

2.12 x=y cos z = zco, si then
xy+yz+zx =
(A)-1
(0)1
(B)0
(D)2
Ono Sum and Difference formulae

Answers

Answered by simran123461

1

Step-by-step explanation:

please explain the question clearly

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