Question

1
24. If a=
2+1
and b=-
√2-1
find the value of a2 + b2.
​

Answer 1

Answer:

8

Step-by-step explanation:

(2+1)2+(√2-1)2

3x2+1x2

6+2=8

Answer 2

a= √2 + 1
b= - √2-1

find the value of a2 + b2.

(√2+1)^2+(√2-1)^2
2+1+2 *√2*1 + 2+1 - 2 *√2*1
6+2√2-2√2
6
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