Question

d/dx [cosx(1+x²) ] ?​

Answer 1

Step-by-step explanation:

$\huge \boxed{ \pink{QUESTION}} \\ \frac{d}{dx} cos(1 + {x}^{2} ) \\ = - sin(1 + {x}^{2} ) \times (2x) \\ = - 2xsin(1 + {x}^{2} ) \\ \\ \huge \boxed{ \red{formula}} \\ \frac{d}{dx} cosx = - sinx$