3 public questions tagged with this topic.
Understanding this is easy: after simplifying, 4a is left. The method is simple: formula → substitution → calculation → answer.
Ref: NCERT Mathematics Class XII — Integrals
The trick is we verify C = /4 - 1 by full calculation: use standard identity, substitute, simplify step by step to reach C = /4 - 1.
Ref: NCERT Mathematics Class XII — Integrals
Let's break it down: complete solution: write formula, plug data, do arithmetic. Final value matches 1. Simple and accurate.
Ref: NCERT Mathematics Class XII — Integrals
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