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#940 [
z y ONEWayEXpress
]
t^2
={(sinΖ/2)/(cosΖ/2)}^2
=(1-cosΖ)/(1+cosΖ)
cc
cosΖ=(1-t^2)/(1+t^2)
:09/08/03 23:06
:SH903i
:hMj8k/J.
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