Question 7 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): 1/ [ax^2 + bx + c]
Class X1 - Maths -Limits and Derivatives Page 317
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y =1/ [ax^2 + bx + c]
Using chain rule
= y = {ax²+bx+c}^-¹
dy/dx = -1 {ax²+bx+c}^-² ×2ax+b
=> -(2ax+b)/{ax²+bx+c}²
Using chain rule
= y = {ax²+bx+c}^-¹
dy/dx = -1 {ax²+bx+c}^-² ×2ax+b
=> -(2ax+b)/{ax²+bx+c}²
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