Question

найти производную 1) y=(2-5x)*√x 2) y=10x³ 2/x tgx 7 3) y=3ctg (2x 3)

Answer 1

1)
y=(2-5x)·$\sqrt{x}$
y'=(0-5)·$\frac{1}{2 \sqrt{x} }$=-2,5$\sqrt{x}$
2)
y=10$x^{3}$$\frac{2}{x}$tgx
y'=10·3$x^{2}$·(-$\frac{2}{ x^{2}}$·$\frac{1}{cos^{2}x }$