Chapter 10 Trigonometry

Question 1

Radians and degrees

Answer 1

Question 2

Calculating arc length and area of circle using radians

Answer 2

Question 3

SOH CAH TOA, Area of triangle formula, sine and cosine rule

Answer 3

Area of sector = 1/2 (π r^2 Θ)

Question 4

Area of sector, examples..

Answer 4

Question 5

Area of segment

Answer 5

Question 6

Exact values for trig identities

Answer 6

Thumb not counted, face palm towards yourself of your hand
For sine, sqrt(number of fingers below one we need) divided by 2
For sine pinky finger = 0 then going up 0,30,45,90

For cosine, sqrt(number of fingers above one we need) divided by 2
For cosine pinky finger = 0 then going up 0,30,45,90

For tangent, turn the hand, face it palm outwards, then put down the finger which we require, count the number of fingers above and below the finger put down
sqrt(top/bottom)

Question 7

Sine, Cosine, Tangent Graphs

Answer 7

Question 8

Sine and Cosine Rule and Area of Triangle

Answer 8

Question 9

Using trig formulas to solve equations

Answer 9

Question 10

Trigonometric identities

Answer 10

Question 11

Trigonometric identities pt.2

Answer 11

Question 12

Trigonometric identities pt.3

Answer 12

Question 13

All the trigonometric functions

Answer 13

Question 14

Chapter Summary

Answer 14