Compute 4923 ÷ 547 – 10.
The mean of the data 1, \( \frac{1}{2} \), \( \frac{1}{2} \), \( \frac{3}{4} \), \( \frac{1}{4} \), 2, \( \frac{1}{2} \), \( \frac{1}{4} \), \( \frac{3}{4} \) is.
\( \frac{15}{18} \)
\( \frac{13}{18} \)
\( \frac{7}{9} \)
\( \frac{8}{9} \)
Which is the correct ascending order of the given numbers?
\( \frac{2}{3} \),\( \frac{5}{6} \), \( \frac{3}{4} \)
\( \frac{3}{4} \),\( \frac{2}{3} \), \( \frac{5}{6} \)
\( \frac{2}{3} \),\( \frac{3}{4} \), \( \frac{5}{6} \)
\( \frac{5}{6} \),\( \frac{3}{4} \), \( \frac{2}{3} \)
If Tan A = \( \frac{15}{8} \) and Tan B = \( \frac{7}{24} \), then Cos (A + B) = ?
\( \frac{87}{425} \)
\( \frac{304}{425} \)
\( \frac{297}{425} \)
\( \frac{416}{425} \)