If x2
+ y2
= 29 and xy = 2, find the value of
(i) x+y (ii) x-y (iii) x4
+y4
Answers
Answered by
9
Step-by-step explanation:
(x+y)²=x²+y²+2xy
=(x²+y²)+2*3
=29+4
(x+y)²=33
x+y=√33
(x-y)²=x²+y²-2xy
=(x²+y)³-2*2
=29-4
(x-y)²=25
x-y =5
Answered by
4
Answer
Step-by-step explanation:
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