Using sum and difference formulas to verify a trigonometric identity

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Mathematics
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial trigonometric identity that needs to be verified?
π minus Theta minus the sine of π halves minus Theta equals zero
π minus Theta plus the sine of π halves minus Theta equals zero
π plus Theta plus the sine of π halves plus Theta equals zero
π plus Theta minus the sine of π halves plus Theta equals zero
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which formula is used to express cosine of U minus V?
sine of U times cosine of V plus cosine of U times sine of V
cosine of U times cosine of V plus sine of U times sine of V
sine of U times sine of V minus cosine of U times cosine of V
cosine of U times sine of V minus sine of U times cosine of V
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of cosine at π?
0
1
Undefined
-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of sine at π/2?
-1
Undefined
1
0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final result after simplifying the expression?
-1 = 0
0 = 0
0 = 1
1 = 1
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