Question

qual a derivada de y=2x-3/x+5

Answer 1

y=(2x-3)/(x+5

Regra do quociente

f=v/u   ==> f'=(v'*u-v*u')/u²

y'=[(2x-3)'*(x+5) -(2x-3)*(x+5)']/(x+5)²

y'=[2*(x+5)-(2x-3)*1]/(x+5)²

y'=[2x+10-2x+3]/(x+5)²  =  3/(x+5)² é a resposta