Question

k
The value of k for which given system
imfinitely many
solution fx + 3y = k13, 12x they
ol
w
of equation has
A. 6
B. u
0.5
D.2
a
Plzz
explain
it.​

Answer 1

Answer:

In equation 1, kx + 3y =2k

here a1=k b1=3 & c1=2k

And equation is 12x + ky = k

here a2=12 b2=k and c2=k

For a equation to have no solutions,

a1/a2 = b1/b2 not equal to c1/c2

Now a1/a2 = b1/b2

so k/12 = 3/k

=> k^2=3×12

=>k = √(12×3)=6

Now b1/b2 not equal to c1/c2

=> 3/k not =2k/k

=>3/k not=2

=>k not=3/2

=> k not equal to 1.5

So the value of k for which the pair of equations have no soln is 6.

HOPE THIS HELPS U

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Answer 2

Thanks for following

in which class do you study