Question

DERIVADA DE cos^4 x-4 PARA CÁLCULO I

Answer 1

$\mathsf{\dfrac{d}{dx}[cos^4(x)-4]=4cos^{4-1}(x).(-sen(x))}\\\large\boxed{\boxed{\boxed{\boxed{\mathsf{\dfrac{d}{dx}[cos^4(x)-4]=-4sen(x).cos^3(x)}}}}}$