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2. Graphs of y = a sin bx and y = a cos bx

Did you notice? The variable `b` gives the number of cycles between `0` and `2pi`. Higher `b` gives higher frequency (and lower period). Formula for Period The relationship between `b` and the period is given by: `"Period"=(2pi)/b` Note: As b gets larger,...

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就在 Sneakerheads 追逐限量聯名款的同時,好穿、實搭又平價的 Vans Old Skool 卻在這些年成為街頭潮人鞋櫃裡必備的經典國民鞋款,就連「帶貨王」吳亦凡也對這雙鞋絕對情有獨鍾,不論日常穿搭或是重要演出,總是能看到 Kris 吳腳踩 Vans 的身影。不過,如果你對出門一趟卻老是跟...

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