फलन (f(x)=\lfloor 3x\rfloor) में (x=-0.4) पर मान क्या है?

What is the value of (f(x)=\lfloor 3x\rfloor) at (x=-0.4)?

Explanation opens after your attempt
Correct Answer

A. (-2)

Step 1

Concept

Here (3x=-1.2), and \(\lfloor -1.2\rfloor=-2\). For negative decimals, take the lower integer.

Step 2

Why this answer is correct

The correct answer is A. (-2). Here (3x=-1.2), and \(\lfloor -1.2\rfloor=-2\). For negative decimals, take the lower integer.

Step 3

Exam Tip

(3x=-1.2) और \(\lfloor -1.2\rfloor=-2\)। ऋणात्मक दशमलव में नीचे की ओर पूर्णांक लें।

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फलन (f(x)=\lfloor 3x\rfloor) में (x=-0.4) पर मान क्या है? / What is the value of (f(x)=\lfloor 3x\rfloor) at (x=-0.4)?

Correct Answer: A. (-2). Explanation: (3x=-1.2) और \(\lfloor -1.2\rfloor=-2\)। ऋणात्मक दशमलव में नीचे की ओर पूर्णांक लें। / Here (3x=-1.2), and \(\lfloor -1.2\rfloor=-2\). For negative decimals, take the lower integer.

Which concept should I revise for this Mathematics MCQ?

Here (3x=-1.2), and \(\lfloor -1.2\rfloor=-2\). For negative decimals, take the lower integer.

What exam hint can help solve this Mathematics question?

(3x=-1.2) और \(\lfloor -1.2\rfloor=-2\)। ऋणात्मक दशमलव में नीचे की ओर पूर्णांक लें।