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Question
Find the period and amplitude of y = sin 7x
Solution
y = sin 7x
For Amplitude use the form
y = a sin(bx – c) + d
Amplitude = |a|
a = 1
∴ |a| = 1
Period using the formula = `(2pi)/|"b"| = (2pi)/|7| = (2pi)/7`
∴ Amplitude = 1
Period = `(2pi)/7`
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