At what value of x is the function y = (

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Target Exam

CUET

Subject

-- Mathematics - Section A

Chapter

Applications of Derivatives

Question:

At what value of x is the function y = (2x+1)(x+3) attains its minimum value?

Options:

-7/4

7/4

3/4

-3/4

Correct Answer:

-7/4

Explanation:

\(\frac{dy}{dx}= 4x+7\) Put \(\frac{dy}{dx}= 0\)