Question

15. If a=3 and b= -2, find the values of:
(i) a^a + b^b
ii) a^b + b^a

Answer 1

In future just substitute the number in

Answer 2

Explanation:

(i) a^a + b^b

for a=3 and b= -2

3^3 + -2^(-2)

-2^(-2) = -(1/2^2)

3^3 -(1/2^2)

27 - (1/4)

26 3/4

ii) a^b + b^a

a^b + b^a

for a=3 and b= -2

3^(-2) + (-2)^3

1/3^2 + (-2)(-2)(-2)

1/9 - 8

-7 8/9