If a, b, c are the direction ratios of the line and l, m, n are the direction cosines of the line, then which of the following is true?

\(\frac{l}{a}=\frac{m}{b}=\frac{n}{c}=μ-1\)

\(\frac{l}{a}=\frac{m}{b}=\frac{n}{c}=μ\)

\(\frac{l}{a}=\frac{m}{b}=\frac{n}{c}=μ-1\)

\(\frac{l}{a}=\frac{m}{c}=\frac{n}{b}=μ\)

\(\frac{l}{a}=\frac{n+1}{b}=\frac{n}{c}=μ\)

If a, b, c are the direction ratios of the line and l, m, n are the d

1.	If a, b, c are the direction ratios of the line and l, m, n are the direction cosines of the line, then which of the following is true?
A.	\(\frac{l}{a}=\frac{m}{b}=\frac{n}{c}=μ\)
B.	\(\frac{l}{a}=\frac{m}{b}=\frac{n}{c}=μ-1\)
C.	\(\frac{l}{a}=\frac{m}{c}=\frac{n}{b}=μ\)
D.	\(\frac{l}{a}=\frac{n+1}{b}=\frac{n}{c}=μ\)
Answer» B. \(\frac{l}{a}=\frac{m}{b}=\frac{n}{c}=μ-1\)