Question

solve this question sir
fast​

Answer 1

Answer:

on opening sin square thetas into 1 - cos squared theta

we get 3 -( cos square theta 1 + cos square theta 2 + cos square theta 3 ) = 1/3

therefore cos square theta 1 + cos square theta 2 + cos square theta 3 = 3 - 1/3

so answer is is 8/3

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Answer 2

Step-by-step explanation:

here is your answer.

formula used=sin^2theta+cos^2theta=1