If `(x/y)^(2/5)+(y/x)^(2/5)=2` ,then `(x/y)^(4/5)+(y/x)^(4/5)=____`.

If ((x)/(y))^((2)/(5))+((y)/(x))^((2)/(5))=2, then ((x)/(y))^((5)/(5))+((y)/(x))^((4)/(5))=

if log_(2)((x^(5)-y^(5))/(x^(5)+y^(5)))=5, then y^(4)(dy)/(dx)=

Find each of the following products: (i) (x + 3) (x - 3) (ii) (2x + 5)(2x - 5) (ii) (8 + x)(8 - x) (iv) (7x + 11y) (7x - 11y) (v) (5x^(2) + (3)/(4) y^(2)) (5x^(2) - (3)/(4) y^(2)) (vi) ((4x)/(5) - (5y)/(3)) ((4x)/(5) + (5y)/(3)) (vii) (x + (1)/(x)) (x - (1)/(x)) (viii) ((1)/(x) + (1)/(y)) ((1)/(x) - (1)/(y)) (ix) (2a + (3)/(b)) (2a - (3)/(b))

Expand : (5x +2y)(5x + 4y)

HCF and LCM of two polynomials are (x+y) and 3x^(5) + 5x^(4)y + 2x^(3)y^(2) - 3x^(2)y^(3) - 5xy^(4) - 2y^(5) , respectively. If one of the polynomials is (x^(2) - y^(2)) . Then, the other polynomial is

Simplify : (2x+y)^(5)-5y(2x+y)^(4)+10y^(2)(2x+y)^(3)-10y^(3)(2x+y)^(2)+5y^(4)(2x+y)-y^(5)