precalculus, math homework help | Nursing School Essays

precalculus, math homework help | Nursing School Essays

i need help to answer q in precalculus

Question 1 (4 points)

Find the exact value of the expression. Do not use a calculator.
sin – cos

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Question 2 (4 points)

Solve the equation on the interval 0 ≤ θ < 2π.
2 cos(2θ) =

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Question 3 (4 points)

Find the exact value of the expression if θ = 30°. Do not use a calculator.
g(θ) = sin θ Find 10g(θ).

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Question 4 (4 points)

Find the exact value. Do not use a calculator.
sin 405°

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Question 5 (4 points)

Find the exact value of the expression. Do not use a calculator.
sec 60° – cos 45°

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Question 6 (4 points)

In the problem, t is a real number and P = (x, y) is the point on the unit circle that corresponds to t. Find the exact value of the indicated trigonometric function of t.
(, ) Find sin t.

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Question 7 (4 points)

Find the exact value of the expression if θ = 60°. Do not use a calculator.
f(θ) = sin θ Find 4f(θ).

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Question 8 (4 points)

Solve the equation. Give a general formula for all the solutions.
cos θ = –

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Question 9 (4 points)

Solve the equation on the interval 0 ≤ θ < 2π.
sin2 θ + sin θ = 0

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Question 10 (4 points)

In the problem, t is a real number and P = (x, y) is the point on the unit circle that corresponds to t. Find the exact value of the indicated trigonometric function of t.
(- , ) Find cos t.

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Question 11 (4 points)

Find the exact value of the expression.
cos-1

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Question 12 (4 points)

In the problem, t is a real number and P = (x, y) is the point on the unit circle that corresponds to t. Find the exact value of the indicated trigonometric function of t.
(, ) Find sec t.

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Question 13 (4 points)

Solve the equation. Give a general formula for all the solutions.
sin θ = 1

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Question 14 (4 points)

Solve the equation on the interval 0 ≤ θ < 2π.
4 cos2x – 3 = 0

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Question 15 (4 points)

Find the exact value of the expression.
cos-1

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