Show `( a + b )^2` is equal to

a ^(2) - b ^(2) is equal to

If a ^(2) + b ^(2) = 169, ab = 60 , then (a ^(2) - b ^(2)) is equal to :

(1)/(2) (a + b) (a ^(2) + b ^(2) ) +(1)/(2) (a - b) (a ^(2) - b ^(2)) is equal to

Show that (4-11)^(2) is not equal to 4^(2)-11^(2)

9.Show that the product of n geometric means between a and b is equal to the nth power of the single GM between a and b.

If a ^(*)b=2(a+b) then 5^*2 is equal : to