Questions
If the system of linear equations , has non-zero solution. Then
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a
are in G.P
b
are in H.P
c
Satisfya+2b+3c=0
d
are in A.P
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Correct option is B
The condition for a homogeneous system of equations has non-zero solution is Δ=0⇒12aa13bb14cc=0C2→C2-2C3⇒ 10a1bb12cc=0⇒R2→R2−R1R3→R3−R2, 10a0bb-a02c-bc-b=0 ⇒bc-b-2c-bb-a=0 ⇒bc-b2-2bc+2ca+b2-ab=0 ⇒2ca=bc+ab ⇒2b=1a+1cSimilar Questions
If the system of equations,
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