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All values of m for which both roots of the equation x 2 -2mx+m 2 -1=0 are greater than -2 and less than 4, lie in the interval.

All values of m for which both roots of the equation x2-2mx+m2-1=0 are greater than -2 and less than 4, lie in the interval.

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Grade:12th pass

1 Answers

Arun
25763 Points
3 years ago
Dear student
 
using the quadratic formula you see that x = [ 2m ±2 ] / 2 or x = m ±1....x in ( - 2 , 4 ) means m in ( - 1 , 3 )
 
hence option A is correct

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