If x2 + y2 = 57, xy = 16 and x is bigger than y, then (x - y) is equal to
Answers
Answered by
12
Answer:
5
Step-by-step explanation:
Given that : x²+y² = 57 and xy = 16
As we know that :
{(x - y)}^{2} = {x}^{2} + {y}^{2} - 2xy
{(x - y)}^{2} = 57 - 2 x 16
{(x - y)}^{2} = 57 - 32
{(x - y)}^{2} = 25
(x - y) = 5
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Answered by
3
Answer is 5
Step-by-step explanation:
(x-y)^2 = (x)^2 + (y)^2 - 2xy
= 57-2×16
= 57-32
(x-y)^2 = 25
(x-y) =
(x-y) = 5
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