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प्रश्न
Find the period and amplitude of y = 4 sin(– 2x)
उत्तर
y = 4 sin(– 2x)
a = 4
b = – 2
Amplitude = |4| = 4
Period = `(2pi)/|"b"|`
= `(2pi)/|- 2|`
= `(2pi)/2`
= π
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