What is the difference between ( (a+1)2 ) and \(a^2+1\)?
Explanation opens after your attempt
Correct Answer
B. ( (a+1)2 ) में मध्य पद (2a) भी होता है/( (a+1)2 ) also has middle term (2a)
Step 1
Concept
( (a+1)2=a-2+2a+1 ), so \(a^2+1\) is incomplete. Exam tip: do not omit the middle term.
Step 2
Why this answer is correct
The correct answer is B. ( (a+1)2 ) में मध्य पद (2a) भी होता है / ( (a+1)2 ) also has middle term (2a). ( (a+1)2=a-2+2a+1 ), so \(a^2+1\) is incomplete. Exam tip: do not omit the middle term.
Step 3
Exam Tip
( (a+1)2=a-2+2a+1 ), इसलिए \(a^2+1\) अधूरा है। परीक्षा में मध्य पद न छोड़ें।
Mathematics Answer, Explanation and Revision Hints
( (a+1)2 ) और \(a^2+1\) में क्या अंतर है? / What is the difference between ( (a+1)2 ) and \(a^2+1\)?
Correct Answer: B. ( (a+1)2 ) में मध्य पद (2a) भी होता है / ( (a+1)2 ) also has middle term (2a). Explanation: ( (a+1)2=a-2+2a+1 ), इसलिए \(a^2+1\) अधूरा है। परीक्षा में मध्य पद न छोड़ें। / ( (a+1)2=a-2+2a+1 ), so \(a^2+1\) is incomplete. Exam tip: do not omit the middle term.
Which concept should I revise for this Mathematics MCQ?
( (a+1)2=a-2+2a+1 ), so \(a^2+1\) is incomplete. Exam tip: do not omit the middle term.
What exam hint can help solve this Mathematics question?
( (a+1)2=a-2+2a+1 ), इसलिए \(a^2+1\) अधूरा है। परीक्षा में मध्य पद न छोड़ें।
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