Simplify `((a^2+b^2)/(a^2-b^2)-(a^2-b^2)/(a^2+b^2))/((a+b)/(a-b)-(a-b)/(a+b)).`

Simplify (a^2-b^2)^2

Simplify : (a^2 – b^2)^2

Simplify: (a^2 - b^2)^2

Simplify (2b-2a)/(a^(2)-b^(2)) .

If tantheta=a/b , then (asintheta+bcostheta)/(asintheta-bcostheta) is equal to (a) (a^2+b^2)/(a^2-b^2) (b) (a^2-b^2)/(a^2+b^2) (c) (a+b)/(a-b) (d) (a-b)/(a+b)

Simplify (3a-2b)^2xx (3a+2b)^2

Simplify: a^(2)b^(2)(a+2b)(3a+b)

Simplify: (a+b+c)^2-(a-b-c)^2

Simplify (a+b+c)^(2)-(a-b-c)^(2)

Simplify (a+b+c)^(2)-(a-b-c)^(2)