F.4 Additional Mathematics

👨🏻‍🏫 學術台數學

chickchickchick

2009-04-08 6:58 am

x is a common root of the equations y^2-2y cosec z – 4 =0 and y^2-2y cot z – 2=0 where 0(degree) <z <360(degree).

Given x = 1 (cot z – cosec z).

Find the value (s) of tan z.

Thank you.
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更新1:

Please show steps.

回答 (2)

STEVIE-G™

2009-04-08 8:53 am

✔ 最佳答案

As follows:

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用戶9170

2009-04-08 8:22 am

x = 1 (cot z – cosec z) should be x = 1/(cot z – cosec z)
(It can be deduced, why given?)

tan z = 2x/(1-x)

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收錄日期: 2021-04-22 00:40:42
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