`1/2+1/4+1/8+1/16+....=x ,1/3+1/9+1/21+1/81+....=y` then `2x+4y=`

(1)/(2) + (1)/(4) + (1)/(8) + (1)/(16) + ….. = x , (1)/(3) + (1)/(9) + (1)/(27) + (1)/(81) + … = y, then

1/16x+1/15y=9/20; 1/20x-1/27y=4/45

1/16x+1/15y=9/20; 1/20x-1/27y=4/45

If 2^2y=(1)/(4) and 3^(4x)=(1)/(81) , then x+y= _____

(x+1)/(2)+(y+1)/(3)=9,(x-1)/(3)+(y+1)/(2)=8 then x=………

The normal to the curve y(x-2)(x-3)=x+6 at the point where the curve intersects the y-axis , passes through the point : (1) (1/2,-1/3) (2) (1/2,1/3) (3) (-1/2,-1/2) (4) (1/2,1/2)

The normal to the curve y(x-2)(x-3)=x+6 at the point where the curve intersects the y-axis , passes through the point : (1) (1/2,-1/3) (2) (1/2,1/3) (3) (-1/2,-1/2) (4) (1/2,1/2)

The normal to the curve y(x-2)(x-3)=x+6 at the point where the curve intersects the y-axis , passes through the point : (1) (1/2,-1/3) (2) (1/2,1/3) (3) (-1/2,-1/2) (4) (1/2,1/2)

Solve the following simultaneous equations. (1)/(3x + y) + (1)/(3x - y) = (3)/(4) , (1)/(2(3x + y)) - (1)/(2(3x - y)) = - (1)/(8)

A=(x^8-1)//(x^4+1) and B=(y^4-1)//(y^2 +1) .If x= 2 and y = 9, then what is the value of A^2 + 2AB + AB^2 ? A=(x^8-1)//(x^4+1) तथा B=(y^4-1)//(y^2 +1) है। यदि x= 2 तथा y = 9 है, तो A^2 + 2AB + AB^2 का मान क्या है?