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


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Question Number 202759 by LimPorly last updated on 02/Jan/24
$Let A={x∣x^2 −4x+3<0,x∈R},B={x∣2^(1−x) +a≤0,x^2 −2(a+7)x+5≤0,x∈R} If A⊆B Find the range of real number a$
$L e t A = {x ∣ x^{2} - 4 x + 3 < 0, x \in R}, B = {x ∣ 2^{1 - x} + a ⩽ 0, x^{2} - 2 (a + 7) x + 5 ⩽ 0, x \in R}$ $I f A \subseteq B F i n d t h e r a n g e o f r e a l n u m b e r a$
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