4 public questions tagged with this topic.
Applying the basic concept, we verify (-∞, 0) by full calculation: use standard identity, substitute, simplify step by step to reach (-∞, 0).
Ref: NCERT Mathematics Class XII — Applications of Derivatives
From the definition, solving fully: apply relevant formula, put numbers, compute. Result comes as 3. Easy verification shows it satisfies condition.
Ref: NCERT Mathematics Class XII — Applications of Derivatives
Simply put, after simplifying, gof(x) is decreasing function is left. The method is simple: formula → substitution → calculation → answer.
Ref: NCERT Mathematics Class XII — Applications of Derivatives
We can see that after simplifying, (-∞,∞) is left. The method is simple: formula → substitution → calculation → answer.
Ref: NCERT Mathematics Class XI — Sets, Relations and Functions
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