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Grade 12th passAnalytical Geometry

Question number 6..........
Ans. is a/x+b/y=1
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Profile image of Sanjay Singh
6 Years agoGrade 12th pass
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1 Answer

Profile image of Aditya Gupta
ApprovedApproved Tutor Answer6 Years ago
first draw the figure. let coordinates of S be (h, k).
now, Q’s coordinates will be (h, 0) and R’s coordinates will be (0, k) where we are assuming Q is on x axis and R on y axis.
now, since QPR is a line, so
slope of line QPR= (k – 0)/(0 – h)= (b – 0)/(a – h)
or – k/h= b/(a – h)
replace h and k by x and y
 – y/x= b/(a – x)
or b/y + a/x= 1
kindly approve :=)