陳喬依

摘 要 筆者在閱讀中發(fā)現(xiàn)，中學(xué)圓錐曲線(xiàn)中常常愿意以面積為導(dǎo)向，考查圓錐曲線(xiàn)中弧長(zhǎng)公式與點(diǎn)的距離公式的應(yīng)用。在答案的解答過(guò)程中，常常出現(xiàn)大量的運(yùn)算。為此筆者對(duì)此問(wèn)題進(jìn)行了思考，并對(duì)解法進(jìn)行了優(yōu)化。同時(shí)還討論了一些有關(guān)面積的問(wèn)題，以得到命題的新思路。

關(guān)鍵詞 圓錐曲線(xiàn) 弧長(zhǎng)公式 高中數(shù)學(xué)

中圖分類(lèi)號(hào)：G633.63 文獻(xiàn)標(biāo)識(shí)碼：A DOI：10.16400/j.cnki.kjdkz.2016.03.021

Study about Area of Triangle in Conic

CHEN Qiaoyi

（Liaoning Province Shiyan High School， Shenyang， Liaoning 110034）

Abstract The author found in reading， conic secondary schools are often willing to area-oriented， examine the application from the formula in the formula of length and conic points. In the course of answers in the answer， there are often a large number of operations. Therefore， the author carried out thinking on this issue， and the solution is optimized. It also discussed a number of issues related to the area， to give new ideas propositions.

Key words conic； Arc length formula； high school mathematics