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CIE 9709 2024 November Paper 13 Q4

A Level / CIE / P1

CIE 9709 2024 Nov Paper 13 Paper · Question 4

题目

Problem

Solve the equation 4sin4θ+12sin2θ7=04\sin^4\theta + 12\sin^2\theta - 7 = 0 for 0θ3600^\circ \leq \theta \leq 360^\circ.

[4]
题目中文翻译

0θ3600^\circ \leq \theta \leq 360^\circ 范围内,解方程 4sin4θ+12sin2θ7=04\sin^4\theta + 12\sin^2\theta - 7 = 0

解答