यदि (a=0) और \(b\neq0\), तो \(ax^7+bx^3+2\) की डिग्री क्या होगी?
If (a=0) and \(b\neq0\), what will be the degree of \(ax^7+bx^3+2\)?
Explanation opens after your attempt
B. (3)
Concept
When (a=0), the \(x^7\) term disappears. Since \(b\neq0\), the \(x^3\) term remains.
Why this answer is correct
The correct answer is B. (3). When (a=0), the \(x^7\) term disappears. Since \(b\neq0\), the \(x^3\) term remains.
Exam Tip
(a=0) होने से \(x^7\) पद हट जाता है। \(b\neq0\) होने से \(x^3\) पद बचता है।
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