Answers 2
Step-by-step explanation:
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Author:
natasha70
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Correct option is B)Given, ∣∣∣∣∣∣∣∣ x 2 +x2x 2 +3x−1x 2 +2x+3 x+13x2x−1 x−23x−32x−1 ∣∣∣∣∣∣∣∣ =ax−12R 1 ⟶R 1 +R 3 ∣∣∣∣∣∣∣∣ 2x 2 +3x+32x 2 +3x−1x 2 +2x+3 3x3x2x−1 3x−33x−32x−1 ∣∣∣∣∣∣∣∣ =ax−12R 1 ⟶R 1 −R 2 ∣∣∣∣∣∣∣∣ 42x 2 +3x−1x 2 +2x+3 03x2x−1 03x−32x−1 ∣∣∣∣∣∣∣∣ =ax−12⇒4[6x 2 −3x−6x 2 +6x+3x−3]=ax−12⇒24x−12=ax−12On comparing, we geta=24
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Author:
hogan
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