ax + by = (a - b), bx - ay = (a + b) Solve By cross multiplication method
Answers
Answered by
6
Step-by-step explanation:
ax+by=(a-b)__(1)
bx-ay=(a+b)__(2)
- Let eqn(1)×a+eqn(2)×b
= (ax+by)a+(bx-ay)b=(a-b)a+(a+b)b
=a²x+aby+b²x-aby=a²-ab+ab+b²
=a²x+b²x=a²+b²
=x= 1
putting the value in eqn (1) we get
=a×1+by=a-b
= y= -1
hope it is correct and it will help u ❤❤
Answered by
3
Step-by-step explanation:
after cross multi
a^2x+abx+aby+b^2y=abx-b^2x-a^2y+aby
now abx and aby gets cancell
a^2x+b^2y=-b^2x - a^2y
x(a^2+b^2)=-y(a^2+b^2)
x=-y
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