निम्नलिखित समीकरणों को हल कीजिए : `(a+b)x+(a-b)y=2ab,(a+b)x-(a-b)y=ab`

(b/a)x+(a/b)y=a^2b^2; x+y=2ab

Solve: (a-b)x+(a+b)y=a^2-2ab-b^2 and (a+b)(x+y)=a^2+b^2

Prove that the angle between the st. lines : (a + b)x + (a-b)y = 2ab and (a-b)x+(a+ b) y = 2ab is tan^-1 frac(2ab)(a^2-b^2) .

Solve by cross multiplication: (a-b)x+(a+b)y=2a-b(a-b)x-(a+b)y=ab

Find the angle between the st. Lines : (a+b)x+(a-b)y=2ab and (a-b)x+(a+b)y=2ab

Find the angle between the st. Lines : (a+b)x+(a-b)y=2ab and (a-b)x+(a+b)y=2ab is ......................

Solve the following pair of linear equations by cross multiplication method : (a+c)x-(a-c)y=2ab , (a+b)x-(a-b)y=2ab .

Triangle formed by variable lines (a+b)x+(a-b)y-2ab=0 and (a-b)x+(a+b)y-2ab=0 and x+y=0 is (where a, b in R )

Triangle formed by variable lines (a+b)x+(a-b)y-2ab=0 and (a-b)x+(a+b)y-2ab=0 and x+y=0 is (where a, b in R )