f(x) = F'(x)
F(x)=3tgx f(x) = 3/cos²x
F(x)=5ctgx f(x) = -5/sin²x
F(x)=3/cos²x = 3·(cosx)² f(x) = 3·(-2)·(cosx)⁻³·(-sinx) = 6sinx/cos³x
F(x)=-5/sin²x = -5·(sinx)⁻² f(x) = -5·(-2)·(sinx)⁻³·cosx = 10cosx/sin³x
f(x) = F'(x)
F(x)=3tgx f(x) = 3/cos²x
F(x)=5ctgx f(x) = -5/sin²x
F(x)=3/cos²x = 3·(cosx)² f(x) = 3·(-2)·(cosx)⁻³·(-sinx) = 6sinx/cos³x
F(x)=-5/sin²x = -5·(sinx)⁻² f(x) = -5·(-2)·(sinx)⁻³·cosx = 10cosx/sin³x