If α, β and γ are the angles which the vector \(\overrightarrow {OP} \) (O being the origin) makes with the positive direction of the coordinate axes, then which of the following are correct?1. cos2 α + cos2 β = sin2 γ2. sin2 α + sin2 β = cos2 γ3. sin2 α + sin2 β + sin2 γ = 2Select the correct answer using the code given below.

If α, β and γ are the angles which the vector \(\overrightarrow {OP

1.	If α, β and γ are the angles which the vector \(\overrightarrow {OP} \) (O being the origin) makes with the positive direction of the coordinate axes, then which of the following are correct?1. cos2 α + cos2 β = sin2 γ2. sin2 α + sin2 β = cos2 γ3. sin2 α + sin2 β + sin2 γ = 2Select the correct answer using the code given below.
A.	1 and 2 only
B.	2 and 3 only
C.	1 and 3 only
D.	1, 2 and 3
Answer» D. 1, 2 and 3

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