Question

Самостоятельная работа по тебе "Производные"

Answer 1

$1)\ \ y=x^3+2x^5\ \ ,\ \ y'=3x^2+10x^4\\\\2)\ \ y=10x+3\sqrt{x}\ \ ,\ \ y'=10+\dfrac{3}{2\sqrt{x}}\\\\3)\ \ y=-\dfrac{3}{x}+7x\ \ ,\ \ y'=\dfrac{3}{x^2}+7\\\\4)\ \ y=tgx+3\ \ ,\ \ y'=\dfrac{1}{cos^2x}\\\\5)\ \ y=x^6+13x^{10}+12\ \ ,\ \ y'=6x^5+130x^9$

$6)\ \ y=(x^2+3)(x^6-1)\\\\y'=2x(x^6-1)+6x^5(x^2+3)=8x^7+18x^5-2x\\\\7)\ \ y=(x^3+1)\cdot \sqrt{x}\ \ ,\ \ y'=3x\cdot \sqrt{x}+\dfrac{x^3+1}{2\sqrt{x}}\\\\8)\ \ y=x^2\cdot cosx\ \ ,\ \ y'=2x\cdot cosx-x^2\cdot sinx\\\\9)\ \ y=(\dfrac{1}{x}+8)(5x-2)\ \ ,\ \ y'=-\dfrac{1}{x^2}\cdot (5x-2)+5\cdot (\dfrac{1}{x}+8)=\dfrac{2}{x^2}+40$

$10)\ \ y=\dfrac{4x-7}{2x+1}\ \ ,\ \ y'=\dfrac{4(2x+1)-2(4x-7)}{(2x+1)^2}=\dfrac{18}{(2x+1)^2}\\\\11)\ \ y=\dfrac{x^4}{2x^2+5}\ \ ,\ \ y'=\dfrac{4x^3(2x^2+5)-4x\cdot x^4}{(2x^2+5)^2}=\dfrac{4x^5+20x^3}{(2x^2+5)^2}=\dfrac{4x^3(x^2+5)}{(2x^2+5)^2}$

$12)\ \ y=\dfrac{5sinx}{x}\ \ ,\ \ y'=\dfrac{5x\cdot cosx-5sinx}{x^2}$