Question

8. If a = 1 , b = 2 and c = - 1 , find the value of: a ^ 3 + b ^ 3 + c ^ 3​

Answer 1

Answer:

8

Step-by-step explanation:

a=1

b=2

c=-1

Then

a³+b³+c³

1³+2³+-1³

1+8+-1

8

Answer 2

a = 1

b = 2

c = -1

a³ + b³ + c³

= 1³ + 2³ + (-1³)

= 1 × 1 × 1 + 2 × 2 × 2 + (-1 × -1 × -1)

= 1 + 8 + (-1)

= 1 + 8 - 1

= 8