Question

Помогите с алгеброй 11 класс​

Answer 1

$f(x)=x^9+15x\ \ ,\ \ f'(x)=9x^9+15\\\\f(x)=7x^3-8x^{-5}+3\ \ ,\ \ f'(x)=21x^2+40\, x^{-6}\\\\f(x)=(x^2-5x)(2x^3+4)\ \ ,\ \ f'(x)=(2x-5)(2x^3+4)+6x^2(x^2-5x)\\\\f(x)=4sinx-5cosx\ \ ,\ \ f'(x)=4\, cosx+5\, sinx\\\\f(x)=\dfrac{1}{8}\, cosx+4\sqrt{x}\ \ ,\ \ f'(x)=-\dfrac{1}{8}\, sinx+4\cdot \dfrac{1}{2\sqrt{x}}$