cos 0 = 1/2 how do I figure out the reference angle in degrees

cos 0 = 1/2 how do I figure out the reference angle in degrees

solve the equation

prove (sin³θ - cos³θ) = (sin²θ - cos²θ)(1-2 sin²θ cos²θ)

1-2. Roxy and Heaven are standing at the seashore 10 miles apart. The coastline is a straight line between them. Both can see tuhe same ship in the water. The angle between the coastline and the line...

I was assigned a math packet for an engineering class and I'm supposed to show work on all problems. Is there any handwritten way to solve this?

Abcdefghijklmnopqrstuvwxyz

Nothing A

For question 18 on the algebra 2 common core test for June 2016 it says it's false that the graph of the equation c(x)=logBASE6x has an asymptote of y=0. I'm still confused how I would know this....

Let f(x)=4.1sin(x)+2.4cos(x). What is the maximum and minimum value of this function? note: I tried the last answer and it ended up being incorrect...

Express the complex number in trigonometric form. -2i

Express the complex number in trigonometric form. -4

The diagonals of a rhombus bisect each other and cross at right angles.

Three circles of radii 7.3, 9.1, and 11.5 cm are mutually tangent. Find the area bounded by the three circles. area = Your answer should be accurate to 4 decimal places.

A chemist has 10 milliliters of a solution that contains a 30% concentration of acid. How many milliliters of pure acid must be added in order to increase the concentration to 50%?

Find V1 and V2

If 0≤u<pi/2 and x=secu, then √x^2−1=f(u), where f(u)=

The discs are hovering at a direct distance of 826 m and 1.296 km from the receiver. Find the difference in height between the two unidentified flying disc, to the nearest meter.

A pilot flies in a straight path for 1 h 30 min. She then makes a course correction, heading 10 degrees to the right of her original course, and flies 2 h in the new direction. If she maintains a...

Convert the following parametric equations to a rectangular equation: x=2cos2t y=2sin2t ...

Solve for x by factoring where 0≤x≤2∏ √3 sinx tanx=3 sinx

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