- 6. If x + y = 3 and x - y = 1, then the value of xy is (1) 2 (2) 3 (3) 4 (4) 1
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Answered by
0
Answer:
1) 2
hope it helps you
it is correct answer
Answered by
3
Answer:
2 is ans
Step-by-step explanation:
x+y=3
x-y=1
add both equations
x+y+(x-y)=3+1
2x=4
x=2
put the value of x in ep 1
2+y=3
y=3-2=1
therefor,
xy=2*1=2
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