Write the expression as the sine or cosine of an angle. sin 42º cos 17º - cos 42º sin 17º

Write the expression as the sine or cosine of an angle. sin 42º cos 17º - cos 42º sin 17º

I sort of know how to do them but not enough to get the correct answer. Can you please help? Please walk me through the problem to get the answer. I really want to know how to do this. 1...

A ship is anchored off a long straight shore that runs north and south. From two observation points 28 miles apart on shore, the bearings of the ship are N 62 degrees E and S 27 degrees E. What is...

Please help me find the step by step proof to this question.

help please

find all values of θ in the interval 0°≤θ<360, that satisfies the equation sin(2θ)= sin θ

Find the exact value of tan(2θ) for the trigonometric expression given where is located in the Quadrant II and tan(θ)=-4/3. Please walk me through it. I'm having a really hard time...

Assume the terminal side of the angle falls in Quadrant 2. Show all work.

angle x may equal... 1. 0 2. 30 3. 45 4. 150

Area of a segment that is 16π - 32 square feet, how do I find the radius?

Verify the following identity: sin(α+β)+sin(α-β)=2sinαcosβ

If a person holding a basketball at eye level of height 165cm is standing at the centre circle what is the angle of depression from the hoop to the basketball?

- The basketball hoop has a height of 3.05m. Measure the distance out from the hoop to the centre circle If a person holding a basketball at eye level of height 165cm is standing at the...

Find all solutions to the equation in the interval [0,2pi). Enter the solutions in increasing order. cos 2x = sinx

sin π/5 cos π/2 + sin π/2 cos π/5 = ? ?π/?

Answer choices: A) sin theta = -1/2 B) sin theta = 1/2 C) sin theta = sqrt3/2 D) sin theta = - sqrt3/2

law of sines

If n represents the number of gallons of oil he purchases, and c(n) represents the cost of the oil purchase, determine the best domain and range for the function

What is the value of x so that the line segment with endpoints W(x, −2) and X(5, −4) is parallel to the line segment with endpoints Y(2, 2) and Z(5, 6)?

if the area of the triangle is 6,what is the length of side b?

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