Cos x if sin x cot x =5

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Which equation could represent the relationship shown in the scatter plot? y=−3x−2 y=−3/4x+10 y=−2/3x+1 y=9x−12 scatter plot with x axis labeled variable x and y axis labeled variable y. points go from upper left to lower right.