JEE Mains Model Paper 5

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Question : 84 of 90

Marks: +1, -0

If φ (x) = f(x) + f(1 − x), f "(x) < 0 for 0 ≤ x ≤ 1, then

φ (x) increasing in the [0,
1
2
)
φ (x) decreases in the[0,
1
2
)
φ (x) increasing in the (
1
2
,1]
minima at x =
1
2

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