Consider the following statements among the angles alpha , beta and gamma made by a veftor with the coordinate axe

### Question Asked by a Student from EXXAMM.com Team

Q 2319156910.     Consider the following statements among the
angles alpha , beta and gamma made by a veftor with the
coordinate axes I

I. cos 2alpha + cos 2 beta + cos 2 gamma = -1

II. sin^2 alpha + sin^2 beta + sin^2 gamma = 1

Which of the abmJe statements is/are correct?
NDA 2011 Paper 1
A

Only I

B

Only II

C

Both I and II

D

Neither I ror II

#### HINT

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