All the values of m for which both roots of the equations x2 − 2mx + m2 − 1 = 0 are greater than −2 but less than 4, lie in the interval
−2 < m < 0
m > 3
−1 < m < 3
1 < m < 4
Option 1)
−2 < m < 0
Option 2)
m > 3
Option 3)
−1 < m < 3
Option 4)
1 < m < 4
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