Q5. Solve for xy X+6 /y = 6 and 3x Q6. Find the value of ‘K’ for which the equations x + 2y + 7 = 0, 2x + ky + 14 = 0 represent co

Question

Q5. Solve for xy X+6 /y = 6 and 3x
Q6. Find the value of ‘K’ for which the equations x + 2y + 7 = 0, 2x + ky + 14 = 0 represent
coincident lines.
Q7. If one root of the equation 2×2 + kx + 4 = 0 is 2. Than find the other roots.
and product of the mots of equation kx2 + 6x + 4k = 0 are equal. Find the
be​

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Faith 1 month 2021-08-14T00:34:35+00:00 1 Answer 0 views 0

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    2021-08-14T00:35:57+00:00

    Answer:

    Q.6 ans k=4

    Step-by-step explanation:

    if lines represents coincident lines then,

    1/2=2/k=7/14

    therefore by solving,we get

    k=4

    Q.7 ans is 1

    2x^2+kx+4=0

    put value of x=2

    by solving we get,

    k=-6

    2x^2-6x+4=0

    x^3-3x+2=0

    (x-1)(x-2)=0

    x=2,1

    therefore other root of equation is 1

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