21 The sum of the squares of two numbers is 13 and their product is 6. Find : (i) the sum of the two numbers. (ii) the difference between them.
Answers
Answered by
0
Answer:
2 is the answr
Step-by-step explanation:
Answered by
1
Answer:
Let the numbers be x and y.
x
2
+y
2
=13
xy=6
We have
∴(x+y)
2
=x
2
+y
2
+2xy
⇒(x+y)
2
=13+2(6)
⇒(x+y)
2
=13+12
⇒(x+y)
2
=25
⇒x+y=
25
⇒x+y=±5.
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