College Math Certification Exam Tests

College Math Practice Test 23

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The Quiz: *2sin12°sin46° =*; "Sine Cosine Tangent" App Download (Android & iOS) Free with answers sin34°+sin58°, cos34°cos58°, sin34°-sin58° and cos34°-cos58° for bachelors degree online. Practice trigonometric identities questions and answers, Google eBook to download free sample for schools that offer online degrees.

**MCQ 111**: 2sin12°sin46° =

- cos34°cos58°
- sin34°+sin58°
- sin34°-sin58°
- cos34°-cos58°

d

**MCQ 112**: The sum and the product of the roots of equation 4x² + 7x -3 = 0 are

- −3/4, −7/4
- −7/4, −3/4
- −7/4, 3/4
- None of Above

b

**MCQ 113**: The period of 3secx/3 is

- π
- 2π
- 3π
- 6π

d

**MCQ 114**: If ƒ(x) = 1/2-sin3x,then f^{-1}(x) =

- 1/3sin
^{-1}(x/2x-1) - 1/3sin(2x-1/x)
- 1/3sin
^{-1}(2x-1/x) - 2 - sin3x

c

**MCQ 115**: (cos(x)-cos3x)/(sin3x-sin(x)) =

- cot2x
- tan2x
- csc2x
- sec2x

b

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