CUET Mathematics 2023 30 May Shift 3 PYQs

If a function $f(x)=x^{2}+b x+1$ is increasing in the interval $[1,2]$, then the least value of $b$ is :

The maximum value of the function $f(x) = x^2(60 - x)$ in [20, 80] is:

If a revenue function is given by $R(x) = 2027x - 1013x^2 - 675x^3$, then the marginal revenue function (MR) is: