Through the point (3,4) are drawn two straight line each inclined at 45* to the straight line x-y=2. find their equations and also find the area of triangle bounded by three lines.
by using the formula
tanA=modulas of (m1-m2)/(1+m1m2)
where A=45 and m1=+1
we can fine m2 from that we get two values
so we get two lines.
using the three lines we find the oint of intersections.
from the area formula we get the area covered by the triangle.