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CIE 9231 2025 Nov Paper 22 Q1

A Level / CIE / FP2

CIE 9231 2025 Nov Paper 22 Paper · Question 1

题目

Problem

The curve CC has polar equation r=e43θr = e^{\frac{4}{3}\theta} for 0θπ0 \leq \theta \leq \pi.

Find the length of CC. Give your answer in an exact form.

[4]
题目中文翻译

曲线 CC 的极坐标方程为 r=e43θr = e^{\frac{4}{3}\theta},其中 0θπ0 \leq \theta \leq \pi

CC 的长度。答案需为精确形式。

解答