यदि x = a, y = b समीकरणों x - y = 2 तथा x + y =
4 का हल हैं, तो a और b का मान क्रमश:
A. 3 और 5 हैं
B.
5 और 3 हैं
C. 3 और 1 हैं
D. -1 और 3
Answers
Answered by
2
Step-by-step explanation:
C ) 3 and 1
3-1=2
3+1=4 so
a=3 b=1
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Answered by
0
Answer :-
Step-by-step explanation:
let x-y = 2 be eqn no. 1
then x+y = 4 be eqn no. 2
from I and 2
x-y = 2
x+y = 4
–––––
y & y cancel
then
2x = 6
x = 6/2
x = 3 be eqn no 3
putting eqn 3 in eqn 2 then,x+y = 4
3+y = 4
y = 4-3
y = 1
so the answer is beat (C) = 3 & 1
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