Question

MATHS-IB
SOLVED EXAMPLES
1. Find
dy
dx
for the following functions
i) y = (2x2 - 4x + 3)
​

Answer 1

Answer:

4x - 4

Step-by-step explanation:

Using properties, which state:

d(x^n)/dx = n.x^(n-1)

d(a)/dx = 0 (where a is fixed number), using this,

=> dy/dx = d(2x^2 - 4x + 3)

= d(2x^2)/dx - d(4x)/dx + d(3)/dx

= 2x^(2-1) - 4(1)x^(1-1) + 0

= 2(2)x^(1) - 4x^(0)

= 4x - 4(1)

= 4x - 4

Answer 2

$\underline{\boxed{\sf{ 4x - 4}}}$