question of Mathematics

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[匿名]

2009-10-26 8:36 pm

3cos(θ)=7cos(60-θ)

Find θ.(Answer in FULL STEPs)

Moreover, 有沒有計數機(Fx-50FH)o既program可以解3cos(θ)=7cos(60-θ) or 解普通方程???

(P.S. 唔要Quadratic equations )

更新1:

(θ)係未知數當(θ)係x

回答 (1)

用戶7639

2009-10-27 5:15 am

✔ 最佳答案

As follows:

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