Please solve the following

(7) Find the equation of the tangent line to the curve y = cot( "I (" ) at (1, 1). (8) Let r(x) = f(g(h(x))) with h(2) = 3, g(3) = -7, f(-7) = 2, h'(2) = 1, g'(3) = 5, f'(-7) = 12. Find r(2). (9) Let F(z) = 3f(f(21)) with f(1) = 2, f(2) = 4, f(4) = 7, f'(1) = 3, f'(2) = 1, f'(4) = 2. Find F'(1). of lennon subs Lim guan