Question

Question 5 Find the derivative of the following functions (it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero constants and m and n are integers): (ax + b) (cx + d)

Class XI - Limits and Derivatives Page 317

Answer 1

apply the chain rule here

f(x) = (ax+b)(cx+d)
f'(x) = (ax+b) d/dx(cx+d) + (cx+d)d/dx(ax+b)
=> (ax+b)(c) + (cx+d)(a)
=> acx+bc+acx+ad
=> 2acx+bc+ad

Answer 2

Hope This Helps You!!