Find the value of (4+4) 2

Find the value of ( 4^3 ÷ 4^(-2) ) is :

1) Find the value of (4/5)^3÷(4/5)^2

Define the following functions: (i) a "@ "b =(a+b)/(2) (ii) a# b =a^(2) -b^(2) (iii) (a!b)=(a-b)/(2) Find the value of {[(3@4)!(3#2)]@[(4!3)@(2#3)]}

Find the value of: (-4)+2/3

Find the value of 2^(0.4) .

if sin A = 4/5 , then find the value of (4 + tan A) (2 + cosA)

Find the value of (4)/((216)^(-2//3))-(1)/((256)^(-3//4))