Which trigonometric ratios are negative for the angles: `(-(5pi)/6)^c`

Which trigonometric ratios are negative for the angles: -210^(@)

Which trigonometric ratios are negative for the angles: 315^(@)

Trigonometric ratios are same for same angle

Which of trigonometric ratios are positive for the angles, (i) 210^(@) (ii) -405^(@)

Which trigonometric ratios are positive for the following angles ( i ) 210^(@) (ii) -135^(@) (iii) ((2 pi)/(3))^(c)

Trigonometric ratio OF Multiple angle

Trigonometric Ratios OF Allied Angles

Trigonometric ratio OF Multiple angle

Find trigonometric ratios of angle A in terms of angle A/3?

Trigonometric ratios OF compound angle