### 方位

 There are 8 bearings that are commonly used in everyday life: east (E), south-east (SE), south(S), south-west (SW), west (W), north-west (NW), north(N) and north-east (NE)

${N}$${N}{E}$${S}{E}$${E}$${S}$${W}$${S}{W}$${N}{W}$

We can use the following methods to indicate precise bearings:

 (i) Reduced bearing All measured directions are in the form of N${x}^{\circ}$ E, N${x}^{\circ}$W, S${x}^{\circ}$E or S${x}^{\circ}$W, where ${x}^{\circ}$ is measured from north or south and 0 < ${x}$ < 90. In the figure, the reduced bearing of ${B}$ from ${A}$ is ${N}{75}^{\circ}{E}$ .

${N}$${A}$${B}$${75}^{{\circ}}$

 (ii) Whole circle bearing All measured directions are in the form of ${y}^{\circ}$, where ${y}^{\circ}$ is the angle measured clockwise from the north and ${0}\le{y}\le{360}$ . The integral part of ${y}$ is written in three digits. In the figure. the whole circle bearing of ${B}$ from ${A}$ is ${075}^{\circ}$ .

${N}$${A}$${B}$${75}^{{\circ}}$

*聲明：此資源並不屬於 ePractice ，僅屬外部資源建議。ePractice 不就其內容負責亦不收受其產生的任何收益。

# 專業備試計劃

Level 4+ 保證及 5** 獎賞

ePractice 會以電郵、Whatsapp 及電話提醒練習

ePractice 會定期提供溫習建議

Level 5** 獎勵：會員如在 DSE 取得數學 Level 5** ，將獲贈一套飛往英國、美國或者加拿大的來回機票，唯會員須在最少 180 日內每天在平台上答對 3 題 MCQ。

Level 4 以下賠償：會員如在 DSE 未能達到數學 Level 4 ，我們將會全額退回所有會費，唯會員須在最少 180 日內每天在平台上答對 3 題 MCQ。

# FAQ

ePractice 是甚麼？

ePractice 是一個專為中四至中六而設的網站應用程式，旨為協助學生高效地預備 DSE 數學（必修部分）考試。由於 ePractice 是網站應用程式，因此無論使用任何裝置、平台，都可以在瀏覽器開啟使用。更多詳情請到簡介頁面。

ePractice 可以取代傳統補習嗎？

1. 會員服務期少於兩個月；或
2. 交易額少於 HK\$100。

Initiating...

HKDSE 數學試題練習平台