railway DFCCIL Executive 2025 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
यदि tan A = \(\frac{2}{3}\) है, तो sinA का मान ज्ञात कीजिए।
1
\(\frac{1}{3}\)
2
\(\frac{2}{{\sqrt {13} }}\)
3
\(\frac{2}{3}\)
4
\(\frac{3}{{\sqrt {13} }}\)