यदि (x=-1) हो, तो \(2x^4-3x^3+x-5\) का मान क्या होगा?
If (x=-1), what is the value of \(2x^4-3x^3+x-5\)?
Explanation opens after your attempt
D. (-1)
Concept
Even powers give positive values and odd powers keep the negative sign. The value is (2(1)-3(-1)-1-5=-1).
Why this answer is correct
The correct answer is D. (-1). Even powers give positive values and odd powers keep the negative sign. The value is (2(1)-3(-1)-1-5=-1).
Exam Tip
सम घात में मान धनात्मक और विषम घात में ऋणात्मक रहता है। मान (2(1)-3(-1)-1-5=-1) है।
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