A) 2
B) 3
C) 4
D) 1
Correct Answer: D
Solution :
Let \[{{2}^{x}}=t\] \[5+|t-1|={{t}^{2}}-2t\] \[\Rightarrow \underset{g(t)}{\mathop{|t-1|=}}\,\underset{f(t)}{\mathop{({{t}^{2}}-2t-5)}}\,\] From the graph So, number of real root is 1.You need to login to perform this action.
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