state gov Allahabad High Court Stenographer 2024 Mock Test Series Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If t = cos 79°, then what is cosec 79° (1 - cos 79°) equal to ?
1
\(\sqrt{\frac{1+\mathrm{t}}{1-\mathrm{t}}}\)
2
\(\frac{t}{\sqrt{1-t^2}}\)
3
\(\frac{\sqrt{1-t^2}}{t}\)
4
\(\sqrt{\frac{1-t}{1+t}}\)