Math, asked by shraddha20048, 1 year ago

plz solve this question

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Answered by himani22mahendr

2

Answer:

Step-by-step explanation:

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shraddha20048: thank u so much

shraddha20048: I cannot understand why that 2 came in third step?

himani22mahendr: You can write sin²β = 1 - cos²β

himani22mahendr: And after solving we multiply and divide by 2.

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