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解三角形 · 历年高考数学真题与解析

本页汇总 高考真题检索 的「解三角形」高考数学真题共 2 道,覆盖 2022 年,最常出题型为 解答题;含完整答案与解析。

2questions
Past questions included
2022
Years covered
区分题为主
Overall difficulty
Free-response
Most common question type
Practice This Topic Do 5 reliable past questions first, then see the answers and explanations after you submit
常用解题方法化归与转化函数与方程
常见易错点范围错误符号错误等号成立条件
Core competencies应用

Past Question List

2022 Tianjin Gaokao Free response Differentiating Question 16 2022_天津卷 (2022)

16.在 $\triangle A B C$ 中,角 $A , B , C$ 的对边分别为 $a, b, c$ .已知 $a=\sqrt{6}, b=2 c, \cos A=-\frac{1}{4}$ .
(1)求 $c$ 的值;
(2)求 $\sin B$ 的值;
(3)求 $\sin (2 A-B)$ 的值.

2022 National Gaokao Free response Differentiating Question 18 2022_新课标 I 卷 (2022)

18.记 $\triangle A B C$ 的内角 $A, B, C$ 的对边分别为 $a, b, c$ ,已知 $\frac{\cos A}{1+\sin A}=\frac{\sin 2 B}{1+\cos 2 B}$ .
(1)若 $C=\frac{2 \pi}{3}$ ,求 $B$ ;
(2)求 $\frac{a^{2}+b^{2}}{c^{2}}$ 的最小值.

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