Question

ax+by=a+b
a(x-y)+b(x+y)= 2b​

Answer 1

Answer:

45°

Step-by-step explanation:

L1 : ax+by=a+b

L2 : a(x-y)+b(x+y)=2b

i,e...L2 : (a+b)x + (b-a)y = 2b

m : slope : tan@ : -(x-coeff/y-coeff)

slope m1: -a/b

slope m2 : -(a+b)/(b-a)

tan@ = m1-m2/(1+m1m2)

tan@ = (-a/b) -[ -(a+b)/(b-a)]/[1+(-a/b) (-(a+b)/(b-a)]

tan@ = 1

hence @ = 45°