Question:medium

Match List-I with List-II

List-IList-II
(A) The minimum value of \( f(x) = (2x - 1)^2 + 3 \)(I) 4
(B) The maximum value of \( f(x) = -|x + 1| + 4 \)(II) 10
(C) The minimum value of \( f(x) = \sin(2x) + 6 \)(III) 3
(D) The maximum value of \( f(x) = -(x - 1)^2 + 10 \)(IV) 5


Choose the correct answer from the options given below:

Show Hint

To find the max/min of simple quadratic and absolute value functions, find the value that makes the squared or absolute part zero. For trigonometric functions, use their known range (e.g., [-1, 1] for sine and cosine).
Updated On: Mar 27, 2026
  • (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
  • (A) - (III), (B) - (II), (C) - (I), (D) - (IV)
  • (A) - (III), (B) - (I), (C) - (IV), (D) - (II)
  • (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
Show Solution

The Correct Option is C

Solution and Explanation

Step 1: Understand the Concept: To determine the minimum or maximum value of each function in List-I, analyze their properties. This requires understanding the range of basic functions such as squares, absolute values, and trigonometric functions. Step 3: Detailed Explanation: (A) f(x) = $(2x - 1)^2 + 3$: The term $(2x - 1)^2$ is a squared expression, thus its minimum value is 0. This minimum is achieved when $2x - 1 = 0$. Consequently, the minimum value of the function is $0 + 3 = 3$. This corresponds to option (III). (B) f(x) = $-|x + 1| + 4$: (Note: The OCR may have missed a preceding negative sign). The term $|x + 1|$ is always non-negative, with a minimum value of 0. Therefore, $-|x + 1|$ has a maximum value of 0. The maximum value of the function is $0 + 4 = 4$. This corresponds to option (I). (C) f(x) = sin(2x) + 6: The sine function, sin(2x), has a range of [-1, 1]. The minimum value of sin(2x) is -1. Therefore, the minimum value of the function is $-1 + 6 = 5$. This corresponds to option (IV). (D) f(x) = $-(x - 1)^2 + 10$: The term $(x - 1)^2$ has a minimum value of 0. Consequently, $-(x - 1)^2$ has a maximum value of 0. The maximum value of the function is $0 + 10 = 10$. This corresponds to option (II). Step 4: Final Answer: The correct pairings are (A) - (III), (B) - (I), (C) - (IV), and (D) - (II). This matches option (3).
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