CBSE Class 11-science Answered
hello
Asked by namaina2005 | 28 Dec, 2009, 04:01: PM
Expert Answer
Angle between two lines is given by
tan θ = (m2-m1)/(1+m1m2)
For lines x/a+y/b=1 and x/b-y/a=1
m1 = -b/a and m2 = a/b
lines are perpendicular to each other
Try the other part similarly
Answered by | 28 Dec, 2009, 04:20: PM
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