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Questions and Answers
Which of the following is the reciprocal of sec(x)?
Which of the following is the reciprocal of sec(x)?
- cos(x)
- sin(x)
- tan(x)
- cot(x) (correct)
Which of the following is NOT a trigonometric identity?
Which of the following is NOT a trigonometric identity?
- sin(2x) = 2sin(x)cos(x)
- sin^2(x) + cos^2(x) = 1
- cos(2x) = 2cos^2(x) - 1 (correct)
- tan(x) = sin(x)/cos(x)
Which of the following is NOT a Pythagorean identity?
Which of the following is NOT a Pythagorean identity?
- cot^2(x) + 1 = csc^2(x)
- sin(x) + cos(x) = 1 (correct)
- 1 + tan^2(x) = sec^2(x)
- sin^2(x) + cos^2(x) = 1
