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Let-A-x-x-2-4x-3-lt-0-x-R-B-x-2-1-x-a-0-x-2-2-a-7-x-5-0-x-R-If-A-B-Find-the-range-of-real-number-a-

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Question Number 202759 by LimPorly last updated on 02/Jan/24
Let A={x∣x^2 −4x+3<0,x∈R},B={x∣2^(1−x) +a≤0,x^2 −2(a+7)x+5≤0,x∈R} If A⊆B Find the range of real number a
LetA={x∣x2−4x+3<0,x∈R},B={x∣21−x+a⩽0,x2−2(a+7)x+5⩽0,x∈R}IfA⊆BFindtherangeofrealnumbera

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