Question

2. For what value(s) of k, the following pair of linear equations has
(i) unique solution (ii) no solution (iii) infinitely many solutions
kx + 3y = k – 3, 12x + ky = k.​

Answer 1

Answer:

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Step-by-step explanation:

S

2

=10m,S

5

=25m

S

n

=u+(a/2)(2n−1)

S

2

=u+(a/2)(4−1)

⟹10=u+3(a/2)

S

5

=u+(a/2)(10−1)

⟹25=u+9(a/2)

Solving above equation we get,

a=5m/s

2

,u=2.5m/s

2

S

7

=2.5+(5/2)(14−1)

⟹S

7

=36m