Find the value of `(a+b)^2`

Find the value of (b-7)^(2)

Find the value of ( a^2/b^2 + b^2/a^2 ) is ( a ) ( a/b + b/a )^2 - 2 ( b ) ( a/b + b/a )^2 + 2 ( c ) ( a/b + b/a )^2 + 4 ( d ) ( a/b + b/a )^2 - 4

If a = 2 , b = 0 then find the value of a^2 + b^2

If a=2,b=-2 find the value of a^2-b^2

Find the value of (a^(2)+b^(2)+c^(2))/(R^(2)) in any right- angled triangle.

If a, b, c are in G.P. and b-c, c-a, a-b are in H.P. then find the value of ((a+b+c)^(2))/(b^(2)) .

Find the value of - (2a+3b) (2a-3b)