The coefficient of `x^2` in `-5/3\ x^2y` is equal to :- (a)`-5/3` (b) `-5/3y` (c)`5/3` (d) `5/3y`

The numefical coefficient of 2x^(5)y^(3) is _____

The sum of the coefficients in the terms of 2x^2y-3x y^2+4x y is (a) -3 (b) 3 (c) 9 (d) 5

x^2\ x\ \ 2y^3\ x\ \ 5x^3y^2 is equal to: (a) 10 x^2y^5 (b) 10 x^5y^2 (c) 10 x^5y^5 (d) x^5y^5

The sum of the coefficients in the terms of 2x^2y-3x y^2+4x y is -3 (b) 3 9 (d) 5

Let A,B, and C be three sets such that A={(x,y)|(x)/(cos theta)=(y)/(sintheta)=5,"where" 'theta'"is parameter"} B= {(x,y)|(x-3)/(cos phi)=(y-4)/(sin phi)=r} C= { (x,y)|(x-3)^(2)+(y-4)^(2)leR^(2)} If phi is fixed and r varies and (A cap B) =1 , then sec phi is equal to (a) (5)/(4) (b) (-5)/(4) (c) (5)/(3) (d) (-5)/(3)

If [(2x+y,0),(5,x)] = [(5,0),(5,3)] then y is equal to (a) 1 (b) 3 (c) 2 (d) -1

If x:y=4:5 , then (2x+3y): (8x-5y) is equal to :

The line tangent to the curves y^3-x^2y+5y-2x=0 and x^2-x^3y^2+5x+2y=0 at the origin intersect at an angle theta equal to (a) pi/6 (b) pi/4 (c) pi/3 (d) pi/2

The line tangent to the curves y^3-x^2y+5y-2x=0 and x^2-x^3y^2+5x+2y=0 at the origin intersect at an angle theta equal to (a) pi/6 (b) pi/4 (c) pi/3 (d) pi/2