If X square plus Y Square equals 29 and XY equals to 2, then find 1. X+Y, 2.X-Y, 3. X^4+Y^4
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If X square plus Y Square equals 29 and XY equals to 2, then find 1. X+Y, 2.X-Y, 3. X^4+Y^4
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Answer:
(i) under root 33 (ii)5
Step-by-step explanation:
we know that (x+y)^2 = x^2+ 2xy + y^2=33
x+y =
[tex] \sqrt{33} [/tex]
again, (x-y)^2= x^2 -2xy + y^2=29-4=25
therefore x-y=5