2. TRIGONOSMETRY

4. Quadrant IQuadrant II Quadrant IIIQuadrant IV X-AXIS Y-AXIS

5. Since the circumference of a circle is _______, one complete rotation would have arc length of _______.

7. Positive Angle Negative AngleCounterclockwise rotation. Clockwise rotation.

8. Trigonometric Functions & the relation between them

23. sin , cosec  ++-- cos , sec  +--+ tan , cot  +-+-

25. Remember The rest of the steps will be the same as followed previously all we have to take care is in which quadrant the resultant function lies in.

26. FUNCTIONDOMAINRANGE

36. SOLUTION:

45. If in a  ABC, cos 3 A + cos 3 B + cos 3 C = 3cosA cosB cosC, Prove that the triangle is equilateral.