Five step plan for james and kevin's ages are 30 james is 14 how old is kevin

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

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?