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Q.

Consider the function, ⨍ (x)=x-2+x-5, x ∈ R

Statement-1 : ⨍ 1 4=0

Statement-2 : ⨍  is continuous in 2, 5, differentiable in 2, 5 and ⨍ 2=⨍ 5

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a

Statement-1 is true, Statement-2 is true and
Statement-2 is not correct explanation for Statement-1

b

Statement-1 is false, Statement-2 is true

c

Statement-1 is true, Statement-2 is false

d

Statement-1 is true, Statement 2 is true;
Statement-2 is a correct explanation for Statement-1

answer is C.

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Detailed Solution

fx=x-2+x-5 =2-x+5-x         ; x<2x-2+5-x         ;2xx52-2+x-5         ; x>5

=7-2x         ; x<23                 ; 2x52x-7         ; x>5 f is continuous in 2, 5, f2=f5=3 f14=0 since fx=3 x2,5  state,emt I is true and statement II is true Statement II explains Statement-I

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