Triangle cosine curve, through the assignment of axes draw the corresponding graph

Packet : 35738632sanjiaoxingquxian.rar filelist
SANJIAOXINGQUXIAN\三角曲线.frm
SANJIAOXINGQUXIAN\工程1.vbp
SANJIAOXINGQUXIAN\工程1.vbw
SANJIAOXINGQUXIAN

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