3 and 90°

Q: Derive a formula for tan (A - B).

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Q: 1. Find the value of x and y 70° y

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Q: Sin63°.cos135°tan315° Sin240°-tan150°.cos153°

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Q: Find the exact value of tan (-1), if it exists. Give convincing reasons for your answer.

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Q: Suppose that -90° < θ < 90°  Sec (-θ)

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Q: Graph y = sin-1 x + cos-1 x in a [-2, 2, 1] by [0, 3, 1] viewing rectangle. What appears to be true…

A: y=sin-1x+cos-1x The graph is,

Q: What is the value of sin (b)

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Q: 1. sin

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Q: Using De moivre's theorem, find expressions for cos50, sin50 and tan50 in terms of cose, sine and…

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Q: sin cos

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Q: Verify that it is an identity  (1-sec/tan)+(tan/1-sec)=-2csc

A: We will simplify left side and make it equal to right side

Q: Suppose that csc a = and 0<a< 4 Find the exact values of cos and tan-

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Q: determine whether tan theta is positive or negative when theta =3 radians and why

A: First we will convert 3 radians into degrees and then check the quadrant and then decide whether…

Q: (8) Find the exact value of cos(tan-1(14/3)) by sketching the appropriate right triangle.

A: Given, cos(tan-1(14/3)) = ?

Q: OIf tan o =} OcOc Ź, find sin s. Sin %3D

A: As per our guidelines we are supposed to answer only one question. Kindly repost other question as…