1.If `y=1/(a+x)`, then what is `y_n`?

If (1)/(8)x+(1)/(8)y=y-2x , then what is the value of (x)/(y) ?

If log (x^2+y^2)=2t a n^(-1)\ (y/x), then show that (dy)/(dx)=(x+y)/(x-y)

If h=(y)/(x-y) , what is h+1 in terms x and y?

If (xy)/(x-y)=1 and xne-y , what is x in terms of y?

If y=x^n , then the ratio of relative errors in y and x is (a) 1:1 (b) 2:1 (c) 1:n (d) n:1

If 3x+3y=1 , what is the value of x=y-6 ?

If x and y are integers, what is x + y ? (1) 3^x = 81 (2) 5^x = (25)/(5^y)

If x+y=1, prove that sum_(r=0)^n .^nC_r x^r y^(n-r) = 1 .

If y=1+x+(x^(2))/(2!)+(x^(3))/(3!)+....+(x^(n))/(n!) , then show that (dy)/(dx)+(x^(n))/(n!)=y

A , r = 1 , 2, 3 ….., n are n points on the parabola y^(2)=4x in the first quadrant . If A_(r) = (x_(r),y_(r)) where x_(1),x_(2),….x_(n) are in G.P and x_(1)=1,x_(2)=2 then y_(n) is equal to