1.

If there are two values of a which makes determinant, Δ=∣∣∣∣1−252a−1042a∣∣∣∣=86, then the sum of these numbers is (a) 4 (b) 5 (c) - 4 (d) 9

Answer»

If there are two values of a which makes determinant, Δ=
1252a1042a
=86
, then the sum of these numbers is

(a) 4
(b) 5
(c) - 4
(d) 9



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