在线观看国产免费视频-国产午夜av-长河落日-xxx日韩-99九九久久-对白超刺激精彩粗话av-狠狠综合网-亚洲视频成人-91刺激-精品国产黄色-少妇人妻邻居-欧美性粗暴-亚洲少妇中文字幕-国产精品一色哟哟哟-黄色美女免费网站-国产网红主播精品av-日韩欧美在线一区二区三区-欧美高清日韩-国产亚洲精品久久久久久久-国产精品--色哟哟

  • 翰林提供學(xué)術(shù)活動、國際課程、科研項目一站式留學(xué)背景提升服務(wù)！
Home » 國際課程 » A-level課程 » Details

AQA A Level Maths: Pure復(fù)習(xí)筆記3.2.5 Radius & Tangent

Category: A-level課程, 教材筆記, 福利干貨 Date: 2022年8月1日 下午3:15

Radius & Tangent

 

What is the relationship between tangents and radii?

  • A?tangent?is a line that?touches?a circle at a single point but doesn't cut across the circle

3.2.5-Tangent

  • A tangent to a circle is perpendicular to the radius of the circle at the point of intersection

 

3.2.5-Tangent-Radius

How can I find the equation of the tangent line to a circle at a given point?

3.2.5-Tangent-Radius-Illustr_1

  • ?STEP 1: Find the gradient of the radius?OP

 

3.2.5-Tangent-Radius-Illustr_2

  • STEP 2: Find the gradient of the tangent

3.2.5-Tangent-Radius-Illustr_3

  • STEP 3: The equation of the tangent is the equation of the line with that gradient that goes through point?P?(see Equation of a Straight Line)

Exam Tip

  • If you understand the formula in Step 2 above, you can find the gradient of the tangent without having to find the gradient of the radius first.

Worked Example

3.2.5-Radius-Tangent-Example

轉(zhuǎn)載自savemyexams

? 2025. All Rights Reserved. 滬ICP備2023009024號-1

國際競賽 國際競賽
了解背提項目
國際課程 國際課程
國際課程
商務(wù)合作 商務(wù)合作
商務(wù)合作
課程試聽 課程試聽