Question

if a=2 and b=-3, find the value of the following expressions:
(a)a-³×b³
(b)a-³÷b³​

Answer 1

Step-by-step explanation:

(a).....

a^-3×b^3

if a=2,b=-3

2^-3×(-3)^3

1/2^3×(-27)

1/8×(-27)

-27/8

(b) ....

a^-3÷b^3

2^-3÷(-3)^3

1/2^3÷(-27)

1/8÷(-27)

1/8×1/(-27)

1/(-216)