CUET Mathematics - Let f : R R be a function defined as f(x) = 2x^3 - 21x^2 + 36x - 20, then : (A) maximum value of f(x) is -3 (B) minimum value of f(x) is -128 (C) maximum value exists at x = 6 (D) minimum value exists at x = 1 Choose the **correct** answer from the options given below : | PYQs + Solutions

CUET Mathematics 2023 22 May Shift 3

Applied Mathematics

Medium

(A), (B) Only

(A), (B), (C) Only

(B), (C), (D) Only

(C), (D) Only

✅ Correct Option: 1

Related questions:

22 May Shift 3

Match List - I with List - II.

	List - I		List - II
(A)	If $y = x^2 - 8$ and $\frac{dy}{dx} = 0$ , then $x = ?$	(I)	1
(B)	If $p(x) = 3x + 1$ , then $R(x)$ at $x = 2$	(II)	0
(C)	If $y = x^3$ , then $\frac{dy}{dx}$ at $x = -1$	(III)	14
(D)	If $C(x) = 100 + 5x$ , $R(x) = 102 + 3x$ , then break-even point	(IV)	3

Choose the correct answer from the options given below :

7 June Shift 1

The minimum value of $f(x) = 4x^3 - 48x + 105$ in the interval [1,3] is :

23 May Shift 3

For a manufacturer, total cost function is given by $C = \frac{x^2}{25} + 2x$ . Which of the following are correct ?

A. 2.6 is the marginal cost when 5 units are produced.

B. $\frac{2x}{25} + 2$ is the marginal cost function.

C. $\frac{x}{25} + 2$ is the average cost function.

D. 2.4 is the marginal cost when 5 units are produced.

E. $\frac{x}{25} + 1$ is the average cost function.

Choose the correct answer from the options given below:

CUET Mathematics 2023 22 May Shift 3 PYQs