Question

3. If bx + ay = a^2+ b^2and ax - by = 0, then the value of x - y is :
(i) a - b (ii) b - a
(iii) a^2 – b^2 (iv) 0
The correct answer is (ii) b-a
I want step by step solution :)​

Answer 1

Answer:

Your answer is b-a

Step-by-step explanation:

From second expression ax-by=0 we get x as

x=by/a

substitue value of x in first expression ,we'll get

(b²y+a²y)/a=a²+b²

y/a(a²+b²)=a²+b²

common terms get cancelled out so we will get y and x

y=a

so x=b

then x-y= b-a