Question

यदि p मूलबिंदु से रेखा ` (x)/(a) +(y)/(b) =1` पर डाले गए लम्ब की लम्बाई हो तो-
A. `(1)/(p^(2))=(1)/( a^(2))+(1)/(b^(2))`
B. ` (1)/(p^(2))= (1)/(a^(2))-(1)/(b^(2))`
C. ` (1)/(p^(2))=- ( 1)/(a^(2)) -(1)/(b^(2))`
D. ` (1)/(p^(2) )= -(1)/(a^(2)) +(1)/(b^(2))`

Answer 1

Correct Answer - A