LimitsHard
Question
If 
= 4, then
= 4, thenOptions
A.a = 1, b = 4
B.a = 1, b = - 4
C.a = 2, b = - 3
D.a = 2, b = 3
Solution
Given 
⇒ 1 - a = 0 and 1 - a - b = 4 ⇒ b = - 4, a = 1.
⇒ 1 - a = 0 and 1 - a - b = 4 ⇒ b = - 4, a = 1.
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