Solve this equation show work 1 2/5× =7

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Af jewelry box is in the shape of a rectangular prism with an area of 528 cube inches. the length of the box is 12 inches and the height is 5 1/2 inches. what is the width of the jewelry box

Cole says the distance between points (-5,0) and (0,-5)is 5 units. is he correct? explain why or why not.