Teaching Railway Teacher PRT 2025 Mock Test Series Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
જો tan θ = \(\frac{8}{15}\) હોય, તો \(\frac{\sqrt{1-sin θ}}{\sqrt{1+sin θ}}\) નું મૂલ્ય શું છે?
1
\(\frac{3}{5}\)
2
\(\frac{3}{4}\)
3
\(\frac{5}{7}\)
4
\(\frac{3}{7}\)