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