Q. 184.0( 5 Votes )
If p be the length of the perpendicular from the origin on the line x/a + y/b = 1, then
A. p2 = a2 + b2
B. 
C. 
D. none of these
Answer :
It is given that p is the length of the perpendicular from the origin on the line 
Squaring both sides
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