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1-x-5-x-1-4-

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Question Number 79560 by jagoll last updated on 26/Jan/20
(√(1+x)) ≤ ((5−x))^(1/(4 ))
1+x⩽5−x4
Commented by john santu last updated on 26/Jan/20
(1+x)^2 ≤5−x , x≤5 ∧x≥−1⇒−1≤x≤5 x^2 +2x+1≤5−x x^2 +3x−4≤0 (x+4)(x−1)≤0 −4≤x≤1 ∧ −1≤x≤5 x ∈ [−1,1]
(1+x)2⩽5−x,x⩽5∧x⩾−1⇒−1⩽x⩽5x2+2x+1⩽5−xx2+3x−4⩽0(x+4)(x−1)⩽0−4⩽x⩽1∧−1⩽x⩽5x∈[−1,1]

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