railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
2cos(θ – π/2) + 3sin(θ + π/2) – (3sinθ + 2cosθ) = ?
A. cosθ – sinθ
B. sinθ – cosθ
C. sinθ + cosθ
D. cotθ - tanθ1
C
2
A
3
B
4
D