Study the diagram of the unit circle at right. a. Evaluate sin(0). b. Evaluate cos(0). 0.62 V W 0 12 c. If a is another angle with the same sine as 0, but a different cosine, in what quadrant is a? (1,0)

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A: Find the value of tan (90°- θ).

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A: is the given value of the variable Now to find all required value for options

Q: a. b. C. d. 위

A:

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Q: Find the value of the trigonometric function indicated. sec Ꮎ Ꮎ 19 21 4√5

A: Given:

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A: Given as  tan A=912 And  cos A=1215