If tan-1 3 + tan-1 x = tan-1 8, then x =
A. 5
B. \(\frac{1}{5}\)
C. \(\frac{5}{14}\)
D. \(\frac{14}{5}\)
Answer:B
If tan-1 3 + tan-1 x = tan-1 8, then x =
A. 5 B. \(\frac{1}{5}\) C. \(\frac{5}{14}\) D. \(\frac{14}{5}\)