How many straight lines in space through...

How many straight lines in space through the origin are equally inclined to the coordinate axes?

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SAMPLE PAPER 2013
MODERN PUBLICATION|Exercise EXERCISE|45 Videos
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MODERN PUBLICATION|Exercise EXERCISE|46 Videos

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MODERN PUBLICATION-SAMPLE PAPER 2014-EXERCISE

Is vec 0 unique
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Under which conditions the straight line (x-a)/l = (y-b)/m = (z-c)/n i...
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How many straight lines in space through the origin are equally inclin...
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What is the value of : C3^20 + C4^20 + C5^20 + ..........+ C17^20 ?
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If an event A is independent of it self, then what is P(A)?
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If y=cosec^(-1)x, then find (dy)/(dx) and determine its value at x=-2.
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Show that no two normals to a parabola are parallel.
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Examine the differentiability of ln x^(2) for all real values of x.
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Interpret Lagrange's mean value theorem geometrically.
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Find the following limits:lim(xrarr0)(sinx/x)^(1/x)
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Evaluate the following integrals : int(dx)/(x^(1/2)+x^(1/3))
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Evaluate : int (xe^x)/(x+1)^(2) dx
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Evaluate : int (0)^(3/2) [x^(2)]dx.
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Find the area of the region bounded by the curve y=sin^(3)x and the st...
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Solve the following differential equations (1+y^2)dx+(x-e^(-tan^(-1)...
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Solve : (x+y)dy +(x-y)dx = 0.
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Find the differential equation whose general solution is ax^(2) + by =...
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If the sum of two unit vectors is a unit vectors find the magnitude of...
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Find the equation of the plane Paralel to the plane 2x-y+3z+1=0 and at...
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Using the method of elemination find the symmetrical form of equation ...
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