For the angle β shown, assume that the circle has radius 1, sin(β) = a, and cos(β) = b. Evaluate the following in terms of either ± a or ± b. (a) cos(180° + β)= _____ (b) sin(360° –β)= _____

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A: As per guide line we have to solve 1st question

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A: To find the values of x and y and to find the six trigonometric ratios of the indicated angle θ.

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A: We find the values by Pythagoras theorem.

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A: Topic = Trigonometry

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