Question

if y = 1/x+3.find dy/dx​

Answer 1

$y = 1 \div (x + 3) \\ \\ y = (x + 3) {}^{ - 1} \\ \\ dy \div dx = - 1(x + 3) {}^{ - 2} \\ \\ dy \div dx = - 1 \div (x + 3) {}^{2}$

Answer 2

we can write it as x^-1+3

formula is nx^n-1

and d/dx(constant)=0

answer is -1x^-2

hope it helps u.