यदि ((r-7)x-8+(r-7)x-3+18) की डिग्री (0) है, तो (r) का मान क्या है?
If the degree of ((r-7)x-8+(r-7)x-3+18) is (0), what is the value of (r)?
Explanation opens after your attempt
A. (r=7)
Concept
For degree (0), both variable terms must vanish. From (r-7=0), we get (r=7).
Why this answer is correct
The correct answer is A. (r=7). For degree (0), both variable terms must vanish. From (r-7=0), we get (r=7).
Exam Tip
डिग्री (0) के लिए दोनों चर पद हटने चाहिए। (r-7=0) से (r=7) मिलता है।
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