Question

How this change occurred ??

☺ Topic — Differential Calculus

☺ Class 11

" How $\red{b}$ came out of the differential parenthesis ? "

Answer 1

$answer$

b came out because b is a constant .

Because

$\frac{d}{dx} (k {x}^{2} ) = k\frac{d}{dx} ( {x}^{2} )$

Answer 2

Topic — Differential Calculus

☺ Class 11

" How $\red{b}$ came