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            • 1.
              已知函数\(f(x)=2a\sin ωx\cos ωx+2 \sqrt {3}\cos ^{2}ωx- \sqrt {3}(a > 0,ω > 0)\)的最大值为\(2\),且最小正周期为\(π\).
              \((I)\)求函数\(f(x)\)的解析式及其对称轴方程;
              \((II)\)若\(f(α)= \dfrac {4}{3}\),求\(\sin (4α+ \dfrac {π}{6})\)的值.
            • 2.
              在\(\triangle ABC\)中,角\(A\),\(B\),\(C\)的对边分别为\(a\),\(b\),\(c\),已知\(b\cos ^{2} \dfrac {A}{2}+a\cos ^{2} \dfrac {B}{2}= \dfrac {3}{2}c.\)
              \((\)Ⅰ\()\)求证:\(a\),\(c\),\(b\)成等差数列;
              \((\)Ⅱ\()\)若\(C= \dfrac {π}{3}\),\(\triangle ABC\)的面积为\(2 \sqrt {3}\),求\(c\).
            • 3.
              已知\(α\)、\(β∈(0,π)\),且\(\tan α\)、\(\tan β\)是方程\(x^{2}-5x+6=0\)的两根.
              \(①\)求\(α+β\)的值.
              \(②\)求\(\cos (α-β)\)的值.
            • 4.
              已知\(\tan ( \dfrac {π}{4}+θ)=3,{求}\sin 2θ-2\cos ^{2}θ\)的值.
            • 5.
              已知\(\sin α= \dfrac {4 \sqrt {3}}{7},\cos (β-α)= \dfrac {13}{14},{且}0 < β < α < \dfrac {π}{2}\).
              \((1)\)求\(\tan 2α\)的值;
              \((2)\)求\(\cos β\)的值.
            • 6.
              设函数\(f(x)=\sin x\cos x- \sqrt {3}\cos (x+π)\cos x(x∈R)\).
              \((\)Ⅰ\()\)求\(f(x)\)的最小正周期;
              \((\)Ⅱ\()\)若函数\(y=f(x)\)的图象按\( \overrightarrow{b}=( \dfrac {π}{4}, \dfrac { \sqrt {3}}{2})\)平移后得到函数\(y=g(x)\)的图象,求\(y=g(x)\)在\([0, \dfrac {π}{4}]\)上的最大值.
            • 7.
              如图,在平面直角坐标系中,锐角\(α\),\(β\)的终边分别与单位圆交于\(AB\)两点.
              \((\)Ⅰ\()\)如果\(\sin α= \dfrac {3}{5}\),点\(B\)的横坐标为\( \dfrac {5}{13}\),求\(\cos (α+β)\)的值;
              \((\)Ⅱ\()\)已知点\(C(2 \sqrt {3},-2)\),求函数\(f(α)= \overrightarrow{OA}⋅ \overrightarrow{OC}\)的值域.
            • 8.
              在\(\triangle ABC\)中,角\(A\),\(B\),\(C\)的对边分别为\(a\),\(b\),\(c\),向量\( \overrightarrow{m}=(\cos (A-B),\sin (A-B))\),\( \overrightarrow{n}=(\cos B,-\sin B)\),\( \overrightarrow{m}\cdot \overrightarrow{n}=- \dfrac {3}{5}\)
              \((1)\)求\(\sin A\)的值;
              \((2)\)若\(a=4 \sqrt {2}\),\(b=5\),求角\(B\)的大小及向量\( \overrightarrow{BA}\)在\( \overrightarrow{BC}\)方向上的投影.
            • 9.
              在\(\triangle ABC\)中,\(a\)、\(b\)、\(c\)分别是角\(A\)、\(B\)、\(C\)的对边,且\( \dfrac {\cos B}{\cos C}=- \dfrac {b}{2a+c}\).
              \((\)Ⅰ\()\)求角\(B\)的大小;
              \((\)Ⅱ\()\)若\(b= \sqrt {13}\),\(a+c=4\),求\(\triangle ABC\)的面积.
            • 10.
              \((1)\)已知\(\cos (15^{\circ}+α)= \dfrac {15}{17}\),\(α∈(0^{\circ},90^{\circ})\),求\(\sin (15^{\circ}-α)\) 的值.
              \((2)\)已知\(\cos α= \dfrac {1}{7}\),\(\cos (α-β)= \dfrac {13}{14}\),且\(0 < β < α < \dfrac {π}{2}\),求\(β\)的值.
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