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If `a=sqrt(17)-sqrt(16) and b=sqrt(16)-sqrt(15)` then

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If `a=sqrt(17)-sqrt(16) and b=sqrt(16)-sqrt(15)` then
A. `a lt b`
B. `a gt b`
C. `a=b`
D. None of these
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Correct Answer - A
(i) If `a gt b ` , then `(1)/(a) lt (1)/(b)`
(ii) Rationalize the numerators of given surds and then compare.
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