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For what value of k, the pair of equations 2x+3y+5=0 and kx+4y=10 has a unique solutions

Posted by Siddhodhan Maale 5 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Mohit Parmar 5 years, 1 month ago

2Thank You

Rani Kumari 5 years, 1 month ago

The equation will have unique solution for all number except 8/3

0Thank You

Yogita Ingle 5 years, 1 month ago

» 2x + 3y + 5 = 0

» kx + 4y = 10

➡ kx + 4y - 10 = 0

we have to find the value of k such that the pair of equations have unique solution.

we know that, when pair of equations have unique solution,

a1/a2 ≠ b1/b2

➡ 2/k ≠ 3/5

just put any value of k so that it doesn't get equal to 3/5.

you can put 1, 2 etc.

for example, k is 2, then a1/a2 = 2/2 = 1

LHS ≠ RHS

0Thank You

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CBSE > Class 10 > Mathematics