MAT 143: Algebra and Trigonometry Instruction: 1. Carefully read the question then answer. 2. Answer must be handwritten and step by step clear explanations. 1. Convert the following angles in degrees to radians. Express your answers in multiple of 7. (a) 135° (b) -60°

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Q: 13. Find the length of ST to the nearest metre. R 41 28 m 113 T S

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Q: Given that sin 80 = 0.3577 and 0 is in quadrant I, find sin 20.

A: We have,Where,  is in quadrant I.To determine: The value of .

Q: Use a calculator to find the following. Round your answer to four places past the decimal point.…

A: The function given is,

Q: 4. If (sin¯¹ x)² + (cot¯¹ x)² : T², then the value of x is ? 16

A: We have to find the value of x.

Q: Use a calculator to solve the equation on the interval [0,2). 2 tan ²x-9 tan x +7=0 2

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A: Use a calculator to evaluate each expression. {Round your answer to three decimal…

Q: 147 15 A circle has a radius of 75 cm and a central angle of. Determine the arc length.

A: .

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Q: 1 1 √3 2 √3 √√3 2 (-1,0) √3 2 (0,1) (0, -1) 3 一路 6 (1,0) 1 13 (9) 2' 2 √3 √3 2 √3 2

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Q: 38. Which trigonometric function is represented in the graph below? O cos(2(0+)) +1 Osin(2(0-)) +…

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Q: What is cot(-11)? 4

A: let