Trigonometry

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What is the period of y = ã3sin (1/3x-ã1/3)?

A, 6ƒÎ
B. ã3ƒÎ
C, 2ƒÎ/3
D. ƒÎ/3

What is tan^-1 ã3/3?
A. ƒÎ/6
B. ƒÎ/4
C. -ƒÎ/3
D. -ƒÎ/4

What is the frequency of y = tan (ƒÎ/3 x) ?
A. 3
B. 1/6
C. ƒÎ/3
D. 1/3

What is the amplitude of y = 1/5 sin (ã5x+1/ã5)?
A. ã5
B. 1/5
C. 1/ã5
D. ã5ƒÎ

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