ExamPle 2: Use an inverse cosine to approximate mZA to the nearest tenth of a degree. B 12 A 13 A tenth of a degree is one decimal point,

Q: 1 1 dxdy 1-x²)(1-) 0 0

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Q: Chalenge 3 Use ABC to find each trigonometric ratio 1. Sin A 4. Tan B 2. Sin B 5. Sec A 3. Csc B C A…

A: We know that sin(∅)=opposide sideHypotenus sidesin(A)=BCABsin(A)=810sin(A)=45

Q: ་ A B 85° 19 47° C

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Q: Calculate the value of (100°)'" × [10-7 × (0.1)*]". Give answer as a power of 100.

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Q: 62 144°

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Q: 1. Find side h. 2. Determine how many triangles exist. 3. Find B

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Q: The sonar of a navy ship detects a submarine that is 4000 feet from the ship. The angle between the…

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Q: 30 60° A

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Q: 10 60° 70

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Q: 2. Find x 85 60° 30°

A: Given:

Q: What is the radian measure of a 135°angle? 37 A 4 T B 135 C 8 D 45

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Q: Convert each radian measure to degrees. See Examples 2(a) and 2(b).

A: We have , π radians = 180°

Q: Example 7: Find the value of x. X 55⁰ 27

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Q: Find x. 45° 43° 37°

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Q: Evaluate. tan(-315°) -1 1 √3

A: topic - trigonometric ratios tan(-x) =-tan (x) tan(360-x) =-tan x

Q: Use an inverse trig function to calculate the angle A. Round to one decimal.

A: From the triangle, we see that, adjacent=35 cmHypotenuse=74 cmAngle to find = ∠A

Q: Find the value of x. Round your answer to the nearest tenth.

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Q: = 21cas( 135

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Q: 115 56° % 35 Find the value ofx

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