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Question
যদি A =
x
,
y
/
x
-
y
=
2
এবং B =
x
,
y
/
x
+
y
=
4
হয়, তাহলে
A
∩
B
এর মান -
(4,2)
(3,1)
(2,2)
(6,4)
ANSWER : 2
Descrption
<p style="margin-left:0px;"><br>A = {(x, y) / x - y = 2} B = {(x, y) / x + y = 4}</p><p style="margin-left:0px;">A ∩ B = {(x, y) / x - y = 2 এবং x + y = 4}</p><p style="margin-left:0px;">x - y = 2 x + y = 4</p><p style="margin-left:0px;">2x = 6 x = 3</p><p style="margin-left:0px;">3 - y = 2 y = 1</p><p style="margin-left:0px;">সুতরাং, A ∩ B = {(3, 1)}</p>
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