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Vikas Singh

· started a discussion

· 1 Months ago

x=y=z=0 (Question: 382362.0 )

x=y=z=0

Question:

If x + y = z, find the value of cos2x + cos2y + cos2z.

Options:
A)

1 + 2sinx siny sinz

B)

1 – 2sinx siny sinz

C)

1 + 2cosx cosy cosz

D)

1 – 2cosx cosy cosz

Solution:

Ans: (c)

  

unkown

· commented

· 1 Months ago

1 number

santosh kumar konisa

· commented

· 1 Months ago

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