7.26R

12-20

\fQuestion 14 of 20 (5 points) Back Question 14 Given that tan 0 = - 2 and

Question 12 of 20 (5 points) Use a double-angle formula to rewrite the expression. 1 1 Itan(x) l+tan(x) o O O o tan x tan (2x) tan x tan (2x)