Question

If x 2+ y 2 =29 and xy =2,find the value of :
1. x - y
2. x4 + y4
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Answer 1

Answer:

1 x-y =x2 / x-x +y -y

2 x4 +y4 =x2/ x4 -y4-

Answer 2

Answer:

x-y= 5

x⁴+y⁴= 833

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