A) \[bx-ay+({{a}^{2}}-{{b}^{2}})=0\]
B) \[bx-ay-({{a}^{2}}-{{b}^{2}})=0\]
C) \[bx-ay=0\]
D) None of these
Correct Answer: C
Solution :
The required equation of line which passes through (a,b) and gradient \[\frac{b}{a}\] is, \[y-b=\frac{b}{a}(x-a)\] \[\Rightarrow bx-ay=0\].
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