railway RRB Group D Mock Test Series 2024-25 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
Given that A and B are second quadrant angles, sin A = \(\frac{4}{5}\) and sin B = \(\frac{5}{13}\) then find the value of cos(A - B).
1
\(\frac{12}{65}\)
2
\(\frac{56}{65}\)
3
\(\frac{16}{13}\)
4
\(\frac{28}{65}\)