Q521
If a = 1 + √3, b = 1 - √3, then what is the value of a2 + b2?
A.
4
B.
8
AnswerC.
0
D.
2
Answer: Option B
Solution
Answer: Option B
Solution:
a = 1 + √3∴ a2 = 1 + 3 + 2√3
b = 1 - √3
∴ b2 = 1 + 3 - 2√3
∴ a2 + b2 = 8