3.If `p(y)=y(y-1)(y+2)` then find the value of `p(0)+p(1)+p(-2)`

if p = (4xy)/(x + y) , find the value of (p+2x)/(p-2x) + (p+2y)/(p-2y) .

If P(x ,y) is any point on the ellipse 16 x^2+25 y^2=400 and f_1=(3,0)F_2=(-3,0) , then find the value of P F_1+P F_2dot

If y=2^(2p-1) and z=p-2, what is the value of (y)/(z) when p=2.5 ?

If x=(sin^3P)/cos^2P,y=cos^3P/sin^2P" and " sinP+cosP=1/2 then find the value of x + y.

If x = log p and y=(1)/(p), then

If x = log p and y=(1)/(p), then

If 2p=x+1/x and 2q=y+1/y , then the value of ((pq+sqrt((p^2-1)(q^2-1)))/(xy+1/(xy))) is

If the points P(1,5) , Q(-1,1) and R(4,y) are collinear, find the value of y .

If alpha and beta are the zeros of the quadratic polynomial p(y)=5y^2-7y+1 , find the value of 1/alpha+1/beta .

If p(y)=y^(3)+y^(2)+y+1 find : (i) y(1) (ii) y(-1)