1. Question 1034
    was: Trigonometry - Trig. Functions - Sec, cosec, cot
    now: Trigonometry - Trig. Functions - Graphs of cosec, sec, cot
  2. Question 300
    was: Trigonometry - Trig. Equations - Inverse Trig. Functions
    now: Trigonometry - Trig. Equations - Introduction to Inverse Trigonometry
  3. Question 301
    Trigonometry - Trig. Equations - Inverse Trig. Functions
  4. Question 1035
    was: Trigonometry - Trig Functions - Arcsin,arccos,arctan
    now: Trigonometry - Trig Functions - arcsin(ax), arccos(ax), arctan(ax)
  5. Question 1728
    was: Differentiation - Inverse trig functions - Arcsin and arccos 2
    now: Differentiation - Inverse trig functions - Derivatives of arcsin, arccos, arctan