CUET Preparation Today
CUET
-- Mathematics - Section B2
Calculus
If $C(x)=15x^3-3\sqrt{5}x+\sqrt{7}$ represents the total cost of producing x items, the slope of the marginal cost function at x =1 is :
$45-3\sqrt{5}$
$90+3\sqrt{5}$
$\frac{15x^4}{4}-\frac{3\sqrt{5}}{2}+\sqrt{7}x+C$
90
