Assertion(A): The range of the function x21+x2 is [0,1) Reason (R): lf f(x)≤g(x) then the range of f(x)g(x),g(x)≠0 is [0,1)
A
Both A and R are true and R is the correct explanation of A
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B
Both A and R are true but R is not correct explanation of A
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C
A is true but R is false
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D
A is false but R is true
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Solution
The correct option is C A is true but R is false f(x)=x21+x2=1−11+x2 11+x2≤1 for all x ∴f(x)∈[0,1) for all x Reason is false as f(x) need not have an existing zero. Then f(x)g(x) will not be zero anywhere.