IIT JAM
Harshal Asked a Question
July 26, 2020 10:25 ampts 30 pts
  • IIT JAM
  • Mathematics (MA)

Ectton-(b) tviot wnicn two linear systems have exactly the same (unique) solution ? (a) 3x 4y = 2 x - 3y = 1 all of these (b) x+ 2y = 5 2x - 3y = - 4 5x + y = 7

ECTTON-(B) TVIOT Wnicn two linear systems have exactly the same (unique) solution ? (A) 3x 4y = 2 x - 3y = 1 All of these (B) X+ 2y = 5 2x - 3y = - 4 5x + y = 7 (C) (D) 6x 2y = 2
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  • Piyush thankyou
    PFA. Ans:A,C
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    Piyush
    Yes ,I noticed that.
  • Shashi ranjan sinha thankyou
    see the attachment
    • cropped815120702501768623.jpg
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  • Deepak singh
    first method - since it is 2×2 matrix , u can easily find out it's inverse of all three matrix, find A^-1 B , and then check which have same solution. second method - check for sp...
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  • Shashi ranjan sinha
    solutions is a and c option
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  • Shashi ranjan sinha
    this is a simple Application of solving non homogeneous systems by considering augmented matrix
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