Maths C4 Trig formulae (OCR MEI)

Description

Quiz to test the required trig formulae for C4, designed with OCR MEI spec in mind, but probably useful for others
Zacchaeus Snape
Quiz by Zacchaeus Snape, updated more than 1 year ago
Zacchaeus Snape
Created by Zacchaeus Snape almost 10 years ago
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45

Resource summary

Question 1

Question
Write cos2x in terms of sinx
Answer
  • 1+ 2sin²x
  • 1-2sin²x
  • 1+sin²x
  • 1-sin²x

Question 2

Question
Write cos2x in terms of cosx
Answer
  • 2cos²x + 1
  • cos²x -1
  • 2cos²x - 1
  • cos²x + 1

Question 3

Question
Write sin²x in terms of cos2x
Answer
  • ½(1 + cos2x)
  • ½(1 - cos2x)
  • ½cos2x
  • 1 - cos2x

Question 4

Question
Write cos²x in terms of cos2x
Answer
  • ½(cos2x + 1)
  • ½(cos2x - 1)
  • cos2x -1
  • cos2x + 1

Question 5

Question
Write cos²x in terms of cos2x
Answer
  • ½(cos2x + 1)
  • ½(cos2x - 1)
  • cos2x -1
  • cos2x + 1

Question 6

Question
Express cos2x in terms of sinx and cosx
Answer
  • cos²x - sin²x
  • cos²x + sin²x
  • sin²x - cos²x
  • 2cos²x - sin²x

Question 7

Question
Express sin2x in terms of sinx and cosx
Answer
  • 2sinxcosx
  • 2sinx + cosx
  • 2cosx + sinx
  • 2(sinx + cosx)

Question 8

Question
secx =
Answer
  • 1/cosx
  • 1/sinx
  • 1/tanx

Question 9

Question
cosecx =
Answer
  • 1/sinx
  • 1/cosx
  • 1/tanx

Question 10

Question
cotx =
Answer
  • 1/tanx
  • 1/cosx
  • 1/sinx

Question 11

Question
What is the small angle approximation for sinθ?
Answer
  • θ
  • 1 - θ
  • 1 - 2θ

Question 12

Question
What is the small angle approximation for cosθ?
Answer
  • 1 - θ²/2
  • 1 - θ²
  • θ
  • θ²

Question 13

Question
What is the small angle approximation for tanθ?
Answer
  • θ²
  • θ
  • 1 + θ
  • θ - 1
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