If `a=1, b=2` then find the value `a^2+b`

If a=2 and b=3 , then find the values of each of the following: (a) (a/b)^a (b) (1/a+1/b)^a

If a=2 and b=3 , then find the values of each of the following: (a) (a/b)^a (b) (1/a+1/b)^a

If a=2 and b=3, then find the values of each of the following: (i) a^a+b^b (ii) a^b+b^a (iii) a^b (a/b)^a (iv) (1/a+1/b)^a

If [a b c]=2 , then find the value of [(a+2b-c)(a-b)(a-b-c)] .

If a+b=7 and a b=12 , find the value of (a^2-a b+b^2)

If a+b=7 and a b=12 , find the value of (a^2-a b+b^2)

If a : b=2:5, . find the value of (3a+2b)/(4a+b)

If a+b=7 and ab=12 find the value of a^(2)-ab+b^(2) .

Find the value of (b-7)^2

If a-b=5 and a b=12 , find the value of a^2+b^2