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Q.

Statement 1 : The equation x log x=2x is satisfied by at least one value of x lying between 1 and 2.
Statement 2 : The function f(x)=x log x is an increasing function in [1, 2] and g(x) =2x is a
decreasing function in [1, 2] and the graphs represented by these functions intersect at a point in [1, 2]

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a

Statement–1 is True, Statement–2 is False

b

Statement–1 is True, Statement–2 is True; Statement–2 is a correct explanation for Statement–1

c

Statement –1 is False, Statement–2 is True

d

Statement–1 is True, Statement–2 is True; Statement–2 NOT a correct explanation for Statement-1.

answer is A.

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Detailed Solution

f(x)=xlogx,f(1)=0,f(2)=4;g(x)=2x,g(1)=1,g(2)=0

log10>log41>log4

Thus statement 1 and 2 both are true and statement 2 is a correct explanaton of statement 1.

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