標題:

a maths question

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發問:

solve the following queation for 0°≦x≦360° secxtanx-tanx+secx-1=0 and the answer is 0°,135°,315° or360°

最佳解答:

As follows: 圖片參考:http://i238.photobucket.com/albums/ff245/chocolate328154/Maths187.jpg?t=1203734367

其他解答:

the answer is 0°,135°,315° or360°A215E4A2B88AAE64
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