यदि (e=0), तो (ex-9+(e-2)x-7+5x-2-1) की डिग्री क्या है?
If (e=0), what is the degree of (ex-9+(e-2)x-7+5x-2-1)?
Explanation opens after your attempt
B. (7)
Concept
At (e=0), the \(x^9\) term vanishes but the coefficient of \(x^7\) remains (-2). Therefore the degree is (7).
Why this answer is correct
The correct answer is B. (7). At (e=0), the \(x^9\) term vanishes but the coefficient of \(x^7\) remains (-2). Therefore the degree is (7).
Exam Tip
(e=0) पर \(x^9\) पद हटता है लेकिन \(x^7\) का गुणांक (-2) रहता है। इसलिए डिग्री (7) है।
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