T1 L29 fun questions

Step 1

• Reduction

• Acute

• Double Angle

• Compound Angle

Step 2: If you don't know them - you will not......

As jy hulle nie ken nie gaan jy julle nie.....

• know them/ ken jy hulle nie

• recognize them/herken nie

• get to the right answer/regkry nie

sinx.cosx

What is missing? Wat kort?

• 1

• 2

• tanx

• cosx

Calculate without the use of a calculator: sin240

Bereken sonder 'n sakrekenaar: sin240

Step 1 and 2/ stap 1 en 2?

• 1. In which quad

  2. How far from the y-axis

• 1. In which quad

  2. How far from the origin

• 1. In which quad

  2. How far from the x-axis

• 1. How far from the x-axis

  2. In which quad

Which one is wrong?

Watter een is verkeerd

• sin2A = 2sinA.cosA

• cos2A = cosAcosA-sinAsinA

• sin(A + B) = sinAcosA+cosA.sinB

• cos2B = 1-2sin(^2) B