Question 4- your correct
Question 2-I think it’s the circle one going to the left
Question 3-your correct
Sorry if wrong
Answer:
= 52
Step-by-step explanation:
Using the equation;
a3+b3=(a+b)3−3ab(a+b)
The sum, a+b =4
The product, ab = 1
Therefore;
a3+b3=4³−3(1)(4)
= 64-12
<u> = 52 </u>
Answer:
1.324
Step-by-step explanation: