Obtain the product of:
`2x,5y,7z`

Obtain the product of: 4xy,5x^2y,7yz^3 .

Obtain the product of: 4xy,5x^2y^2,6x^3y^3

Obtain the product of 2x (3x + 5 xy)

Differentiate (x^2-5x+8)(x^3+7x+9) by expanding the product to obtain a single polynomial.

Obtain the equation of the plane passing through the point (1,-3,-2) and perpendicular to the plane x+2y+2z=5 and 3x+3y+2z=8 .

Three distinct numbers x,y,z form a GP in that order and the numbers 7x+5y,7y+5z,7z+5x form an AP in that order. The common ratio of GP is

What is the distance (in units) between the two planes 3x+5y+7z=3 and 9x+15y+21z=9 :

The equation of the plane containing the line 2x-5y""+""z""=""3;""x""+""y""+""4z""=""5 , and parallel to the plane, x""+""3y""+""6z""=""1 , is : (1) 2x""+""6y""+""12 z""=""13 (2) x""+""3y""+""6z""=-7 (3) x""+""3y""+""6z""=""7 (4) 2x""+""6y""+""12 z""=-13

Find the angle between the pair of lines (x-5)/7=(y+2)/(-5)=z/1 and x/1=y/2=z/3

Find the equation passing throught the intersection of the planes : 2x-7y+4z=3 and 3x-5y+4z+11=0 and the point (-2,1,3).