anonymous
  • anonymous
Matrix question (WHY ?)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Question : 3x + 7y =2 6x+14y = 4 *Question has coincident lines, infinitely many solutions* Answer: \[(k,\frac{ 2-3k }{ 7 }) ; k \in R\] Explain the answer briefly
anonymous
  • anonymous
@hba
AravindG
  • AravindG
do u see any similarity between first two equations?

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anonymous
  • anonymous
yea, 1/2 = 1/2 = 1/2 and I don't understand the answer given
anonymous
  • anonymous
So what are we solving for here?
Callisto
  • Callisto
*Question has coincident lines, infinitely many solutions* ^ You understand this, right?
anonymous
  • anonymous
(k,2−3k7);k∈R what does this means ?
anonymous
  • anonymous
k = any real numbers. Since it has infinitely many solutions, any number lying on the line 3x + 7y =2 is the solution. Suppose x=k, sub x=k into 3x + 7y =2 y = (2-3k)/7 So, the corresponding solution pair is (k, (2-3k)/7) for all real k.

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