find cos (a-b) sin A= -1/2 sin b = 1/4 with sin A in quadrant IV and B in II

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A: This question is based on coordinate geometry.

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A: Solve quadratic relation. 

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Q: 137 tan6 b.

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A: Let's find. 

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Q: Determine

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Q: Save & Exit Certify Lesson: 8.2 Polar Coordinates and Polar E... 5/20 estion 9 of 20, Step 1 of 1 Co...

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Q: Let tan θ = 3 with θ in QI. Find cos 2θ without using a calculator.

A: Given;  tan θ = 3 with θ in QI

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A: NOTE: As per our guidelines, I should have solved only one problem. Since, these are easy questions,...

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Q: For the equation below, solve for the following. Do not use a calculator. (Enter your answers as a c...

A: Trigonometry

Q: 12 45

A: In △PQRsinR=PQPRsin(45°)=PQ1222=PQ12PQ=1222PQ=62cosR=QRPRcos(45°)=QR1222=QR12QR=1222QR=62