Geometry acute obtuse or right will give brainliest

Sketch one cycle if the cosine function y=2cos2theta

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3