Question

Asked Jan 17, 2020

2 views

Suppose that -90 degrees <θ< 90 degrees.

Cos θ/2

Is it positive or negative

Step 1

Step 2

...

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: photo attached

A: Given,

Q: Use the unit circle, reflection, and symmetry to determine the angle θ that corresponds to the given...

A: We need to find the angle theta for the following.tan(θ)=1 and θ is in quadrant three: sec(θ)=−2√3/3...

Q: find sin3xsin3x

A: Given:

Q: Verify that 2tan (x/2)= (sin2x+1-cos2)/(sin x(1+cos x)

A: Consider the given condition that,2tan (x/2) = (sin2x+1–cos2x)/(sin x(1+cos x)) … (1)Consider the le...

Q: A piece of property has a shape of a right triangle. The longer leg is 20m longer than twice the len...

A: Let the shorter leg be x that is b = x.It is given that the longer leg is 20 meters longer than the ...

Q: The direction angle of v is defined to be the angle 0 (0° <0< 360°) in standard position with 3 term...

A: To calculate the direction angle of given vector:

Q: Find the exact value using half-angle formulas. 7 cos(7π/8)

A: Recall the following facts.

Q: Photo attached

A: We have given A = 111.6°, C = 19.9°, c = 241 inches.

Q: whats the inverse of y=7x+9

A: Find the inverse of y =7x+9