railway DFCCIL Executive 2025 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
ଯଦି sin θ> cos θ,\({ \sqrt{1-2\sin\theta \cos\theta} + \sqrt{1+2\sin\theta \cos\theta} \over 2\tan\theta}\)ର ମୂଲ୍ୟ:
1
Cot θ
2
Sin θ
3
Cos θ
4
Tan θ