यदि ((r+6)x-8+(r+6)x-4+20) की डिग्री (0) है, तो (r) का मान क्या है?
If the degree of ((r+6)x-8+(r+6)x-4+20) is (0), what is the value of (r)?
Explanation opens after your attempt
B. (r=-6)
Concept
For degree (0), both variable terms must vanish. From (r+6=0), we get (r=-6).
Why this answer is correct
The correct answer is B. (r=-6). For degree (0), both variable terms must vanish. From (r+6=0), we get (r=-6).
Exam Tip
डिग्री (0) के लिए दोनों चर पद हटने चाहिए। (r+6=0) से (r=-6) मिलता है।
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