Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

cos 48° = \(\rm\frac{m}{n}\), అయిన sec 48° - cot 42° దేనికి సమానం?

1
\(\rm\frac{m-\sqrt{n^2-m^2}}{m}\)
2
\(\rm\frac{m-\sqrt{n^2-m^2}}{n}\)
3
\(\rm\frac{n-\sqrt{n^2-m^2}}{n}\)
4
\(\rm\frac{n-\sqrt{n^2-m^2}}{m}\)

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