827963
Description
Quiz by Zacchaeus Snape, updated more than 1 year ago
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Created by Zacchaeus Snape
almost 10 years ago
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Question 1
Question
Write cos2x in terms of sinx
Answer
-
1+ 2sin²x
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1-2sin²x
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1+sin²x
-
1-sin²x
Question 2
Question
Write cos2x in terms of cosx
Answer
-
2cos²x + 1
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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
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cos²x + sin²x
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sin²x - cos²x
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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
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2θ
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1 - θ
-
1 - 2θ
Question 12
Question
What is the small angle approximation for cosθ?
Answer
-
1 - θ²/2
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1 - θ²
-
θ
-
θ²
Question 13
Question
What is the small angle approximation for tanθ?
Answer
-
θ²
-
θ
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1 + θ
-
θ - 1
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