Q.

The number of solution of log2 (x+5)=6-x is

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a

2

b

0

c

3

d

None of these

answer is D.

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Detailed Solution

log2(x+5)=6-x⇒x+5=26-x⇒x+5=64.2-xLet y=x+5, y=64.2-x will intersect at one point.Number of solutions = 1.
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The number of solution of log2 (x+5)=6-x is