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Question

The number of solutions of log2(x+5)=6−x is

A
2
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B
0
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C
3
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D
none of these
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Solution

The correct option is D none of these
Let f(x)=log2(x+5) and g(x)=6x
From the figure:
f(x) and g(x) have only one point of intersection.
Therefore number solution of log2(x+5)=6x is 1.
Ans: D
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