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Prove that the plane $x+2y-z=4$ cuts the sphere $x^2+y^2+z^2-x+z-2=0$ in a circle whose radius is unity.
This question has multiple parts. Therefore each part has been answered as a separate question on Clay6.com
isc
class12
modelpaper
2007
sec-b
q10
q10-b
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Apr 16, 2013
by
sreemathi.v
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isc
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Find the equation of the plane through the point (1,2,3) and perpendicular to the planes $x+y+2z=3$ and $3x+2y+z=4$.
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isc
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In any $\Delta ABC$,prove by vector method that $\cos B=\large\frac{c^2+a^2-b^2}{2ca}$.
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If a,b,c are elements of Boolean Algebra,prove that $ab+c(a'+b')=ab+c$.
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Apr 19, 2013
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