व्यंजक (2a-[3b-{a-2b}]) का सरल रूप क्या है?
What is the simplified form of (2a-[3b-{a-2b}])?
Explanation opens after your attempt
B. (3a-b)
Concept
Inside, (3b-(a-2b)=5b-a), then (2a-(5b-a)=3a-5b). The correct result is (3a-5b).
Why this answer is correct
The correct answer is B. (3a-b). Inside, (3b-(a-2b)=5b-a), then (2a-(5b-a)=3a-5b). The correct result is (3a-5b).
Exam Tip
अंदर (3b-(a-2b)=5b-a), फिर (2a-(5b-a)=3a-5b) नहीं बल्कि (3a-5b) है। सही उत्तर (3a-5b) होना चाहिए।
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