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The number of integers in the range of '...

The number of integers in the range of 'a' for which roots of `x ^(2) - 2x - a ^(2) +1 =0` lie between the roots of the equation
`x ^(2) - 2 (a +1) x + a ( a-1) = 0,` is

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NTA MOCK TESTS-NTA TPC JEE MAIN TEST 53-MATHEMATICS
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