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Question
If α(0,π2) then x2+x+tan2 αx2+x is always greater than or equal to
Options:
A .  2 tan α
B .  1
C .  2
D .  sec2 α
Answer: Option A
:
A
(a) x2+x+tan2αx2+x2tanα (A.MG.M).

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