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Find the values of k,if the equation $8x^2-16xy+ky^2-22x+34y=12$ represents an ellipse.
This question has multiple parts. Therefore each part has been answered as a separate question on Clay6.com
isc
class12
modelpaper
2011
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Apr 11, 2013
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The directrix of a conic section is $3x+4y=1$ and focus is (2,3).Find the equation of the conic section if its eccentricity is $\large\frac{1}{\sqrt 2}$
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Apr 18, 2013
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A straight line is parallel to the x-axis and passes through the intersection of the lines $x+2y+1=0$ and $y=x+7$.Find the equation of the straight line.
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Apr 16, 2013
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Find the equation of the line passing through the intersection of the straight lines $2x+3y=1$ and $3x+4y=6$ and perpendicular to the line $5x-2y=7$.
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Find the equation of the straight line through origin and passing through the intersection of lines $x-2y+3=0$ and $3x+5y+6=0$.
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Apr 15, 2013
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Prove that $sec^2(tan^{-1}2)+cosec^2(cot ^{-1}3)=15.$
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Apr 10, 2013
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isc
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2012
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A straight line $y=mx$ passes through the intersection of the straight lines $x+2y-1=0$ and $2x-y+3=0.$Find the value of m.
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Apr 17, 2013
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isc
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2005
sec-a
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