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If x+ 3y + k = 0 touches the ellipse x^2...

If `x+ 3y + k = 0` touches the ellipse `x^2/64 + y^1/4= 1` then the value of k is

A

`pm 4`

B

`pm 10 `

C

`pm 8`

D

`pm6`

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The correct Answer is:
B
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER - 1-MATHEMATICS
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  4. The product of the perpendicular from any poitn P(x,y) on the hyperbol...

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  7. 2 tan^(-)""1/3+ tan^(-)""1/7 is equal to

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  8. The equation ax^2 + 2sqrt(a) xy +by^2= 0 represents

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  9. Lt(ntooo)((1^2 + 2^2 + 3^3+...+n^2))/((1^3 + 2^3 + 3^3+...+n^3))=

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  11. If the bisector of the angle A of DeltaABC makes an angle theta with B...

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  13. abs(1/((3 +i)^2)-1/((3-i)^2))=

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  14. If 1, omega,omega^2 are the cube roots of unity the value of (1 - omeg...

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  15. Let f(x) = {:{((x^2-16)/(x-4),if ,xne4),(k,if , x =4):} The the valu...

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  16. Integrate (xe^(x))/((1+x)^(2)) with respect to x.

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  17. If y sqrt((1-cos2x)/(1 + cos2x))" then " dy/dx = 0

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  18. If p1p2,p3 are the lengths of altitudes of a triangle from the vertice...

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  19. Let y = acos(log x) + bsin (logx), then

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