What is the main challenge mentioned by the teacher when evaluating trigonometric functions without a calculator?
Write and evaluate expression using sum and difference identities

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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
Confusion with algebraic expressions
Difficulty in calculating exact values
Inability to recognize angles
Lack of understanding of trigonometric identities
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which trigonometric formula does the teacher identify in the expression?
Sine formula
Secant formula
Cosine formula
Tangent formula
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of angle operation is identified in the sine formula?
Sum of two angles
Difference of two angles
Product of two angles
Division of two angles
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sine of 90 degrees as concluded by the teacher?
0
0.5
Undefined
1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What mathematical operation does the teacher emphasize cannot be distributed in the given problem?
Subtraction
Addition
Division
Multiplication
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