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CGP EDU Academic Team
Published on: August 13, 2026
Let f(x) = 2 2x–1 and φ (x) = –2 x + 2x log 2. If f´(x) > φ′ (x), then
Text Solution
Verified by ExpertsThe correct answer is:
C
f´(x) > φ ´(x)
2 2x-1 .2 log 2 > 2 x log 2 + 2 log 2
2 2x > – 2 x + 2
2 2x + 2 x – 2 > 0
(2 x – 1) 
> 0
2 x – 1 > 0 ⇒ 2 x > 1 ⇒ 2 x > 2 0 ⇒ x > 0
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