Question

If 9^x-4(3^x+2)+3^5 = 0, then solution pair is
(A) (1, 2)
(B) (2,3)
(C) (2, 4)
(D) (1,3)
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Answer 1

Answer:

your answer is (2,3)♧♧♧♧

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Answer 2

Step-by-step explanation:

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MATHS

An ordered pair (α,β) for which the system of linear equations

(1+α)x+βy+z=2

αx+(1+β)y+z=3

αx+βy+2z=2 has a unique solution is

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ANSWER

For unique solution

Δ



=0⇒

∣

∣

∣

∣

∣

∣

∣

∣

1+α

α

α

β

1+β

β

1

1

2

∣

∣

∣

∣

∣

∣

∣

∣



=0

∣

∣

∣

∣

∣

∣

∣

∣

1

0

α

−1

1

β

0

−1

2

∣

∣

∣

∣

∣

∣

∣

∣



=0⇒α+β



=−2

For Option C

α+β=2+4=6 which is



=−2

An ordered pair (2,4) for which the system of linear equations has a unique solution.