English, asked by Anonymous, 7 months ago

EXERCISE 8.4
1. Express the trigonometric ratios sin A, sec A and tan A in terms of cot A.
Write all the other trigonometric ratios of Z A in terms of sec A.
13. Evaluate :
sin? 63°+ sin? 27°

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Answered by kamalivasa07

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Answer:

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Answered by akanshagarwal2005

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Answer:

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