(t=-1) पर \(2t^2+3t-5\) का मान क्या है?
What is the value of \(2t^2+3t-5\) at (t=-1)?
Explanation opens after your attempt
A. (-6)correct value
Concept
(2(-1)2+3(-1)-5=2-3-5=-6). In exams the square of a negative number is positive.
Why this answer is correct
The correct answer is A. (-6) / correct value. (2(-1)2+3(-1)-5=2-3-5=-6). In exams the square of a negative number is positive.
Exam Tip
(2(-1)2+3(-1)-5=2-3-5=-6) है। परीक्षा में ऋणात्मक संख्या का वर्ग धनात्मक होता है।
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