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through the point 3, 4 are drawn to straight lines each inclined at 45 degree to the straight line x - y= 2 . find the equations and find also the area included by the three lines
Dear Kamal 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. RegardsArun (askIITians forum expert)
Dear Kamal
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.
Regards
Arun (askIITians forum expert)
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