What is cos A, if sin 2A V85 , and 2A is an angle in the second quadrant? 11 22 17 22 17 17 22 no correct answer

Q: What is the value of sin 30°cos 60° + cos 30°sin 60°? 0 O A. O B. O C. O D. 1 NIT 2 1 2

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Q: Find the value of the missing angle (in degrees).  Provide a single number as your answer. cos(__°)…

A: we know coa(a-b)=coa(a)cos(b)+sin(a)sin(b)

Q: Find the value of the missing angle (in degrees). Provide a single number as your answer. cos(__°)…

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Q: 33 Suppose sin 2A and 2A is an angle in the Second Quadrant. 7 Then sin A =

A: Explained below...

Q: Let 0 be an angle in standard position. If P(-1, 2) is a point on the terminal side of 0, what is…

A: Topic:- trigonometry ratios

Q: а. Find sin 0 if tan 0 = 3 and cos 0 < 0. b. The supplement of an angle is four times its…

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Q: If a is a quadrant one angle such that sin a = , and B is a quadrant three angle such that 7.…

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Q: 12 The angles a and B are each acute angles in standard position. If we know that sin a =- and cos B…

A: Sinx=√(1-x²)  Sin(x-y) = sinx cosy - cosx siny

Q: Trigonometry Question

A: Find the positive and negative terminals

Q: Find the value of each expression without using a calculator. 1.) a. sin 180° b. cos 180° 2.) a.…

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Q: Calculate. cos 19° cos 68° cos 28° cos 56° cos 38° + 2 sin 28° sin 19° sin 30° 4 sin 28° sin 19°

A: See the attachment.Explanation:

Q: Find the exact values of sin alpha, cosine alpha, tan alpha, csc Alpha, sec Alpha, and cot alpha,…

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Q: Give the exact value of each expression in simplest radical form. 33.) a. cos 45° 34.) a. sin(-45°)…

A: Since you have posted multiple questions, as per guidelines we are supposed to answer only first…

Q: Suppose cos 2A = and 2A is an angle in the Third Quadrant. | 7' Then cos A

A: The trigonometric identity for cosine is cos 2x=2cos2 x−1.

Q: AABC is a 30°-60°-90° triangle. 7. Find AB and AC. 60° 15 sin 60° 8. Verify that tan 60° = cos 60°*…

A: Given