If tan(a-b)=5, find tan a in terms of tan b
show workings..
Maths唔識抵死題(1)
2010-09-16 3:41 am
回答 (1)
2010-09-16 3:50 am
✔ 最佳答案
tan(a - b) = 5tana - tanb / (1 + tanatanb) = 5
tana - tanb = 5 + tanatanb
tana - tanatanb = 5 + tanb
tana(1 - tanb) = (tanb + 5)
tana = (5 + tanb) / (1 - tanb)
收錄日期: 2021-04-23 20:44:49
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