PAT Peminatan XI SMAKRA

 $Yang\ bukan\ persamaan\ trigonometri\ adalah....$  

•  $\cos2x-3\sin x-1=0$  

•  $\sin^2x+\sin x-2=0$  

•  $x^2-x-6=0$  

•  $\cos\left(3x-45\degree\right)=\frac{1}{2}$  

•  $\sin x=-\frac{1}{2}$  

 $\tan^{-1}\left(\sqrt{3}\right)-2\tan^{-1}\left(\frac{1}{3}\sqrt{3}\right)=....$  

•  $0$  

•  $30\degree$  

•  $45\degree$  

•  $60\degree$  

•  $90\degree$  

 $\sqrt{2}\cos x-1=0,\ untuk\ 0\degree\le x\le90\degree\ yang\ memenuhi....$  

•  $0\degree$  

•  $30\degree$  

•  $45\degree$  

•  $60\degree$  

•  $90\degree$  

 $\sin x-\sqrt{3}\cos\ x=....$  

•  $2\cos\left(x-150\degree\right)$  

•  $2\cos\left(x+150\degree\right)$  

•  $2\cos\left(x-180\degree\right)$  

•  $2\cos\left(x-225\degree\right)$  

•  $2\cos\left(x+225\degree\right)$  

 $HP\ \cos2x-\sin x=0,\ untuk\ 0\degree\le x\le180\degree\ adalah....$  

•  $\left\{30\degree,\ 120\degree\right\}$  

•  $\left\{30\degree,\ 150\degree\right\}$  

•  $\left\{30\degree,\ 210\degree\right\}$  

•  $\left\{30\degree,\ 240\degree\right\}$  

•  $\left\{30\degree,\ 330\degree\right\}$  

 $Yang\ benar\ untuk\ \sqrt{6}\sin x+\sqrt{2}\cos x=2\ adalah....$  

•  $\cos\ \left(x-60\degree\right)=\cos\ 45\degree$  

•  $x=100\degree$  

•  $x=105\degree+k.180\degree$  

•  $x=-15\degree+k.360\degree$  

•  $x=15\degree+k.180\degree$  

 $Minimum\ dari\ -4\cos x+3\sin x\ adalah...$  

•  $-1$  

•  $-2$  

•  $-3$  

•  $-4$  

•  $-5$  

 $HP\ \cos x-\sqrt{3}\sin x=2,\ untuk\ 0\degree\le x\le360\degree\ adalah...$  

•  $\left\{210\degree\right\}$  

•  $\left\{240\degree\right\}$  

•  $\left\{270\degree\right\}$  

•  $\left\{300\degree\right\}$  

•  $\left\{330\degree\right\}$  

 $HP\ 2\cos\left(2x-60\degree\right)=\sqrt{3},\ untuk\ 0\degree\le x\le180\degree\ adalah....$  

•  $0\degree$  

•  $30\degree$  

•  $45\degree$  

•  $60\degree$  

•  $90\degree$  

 $\cos73\degree\cos17\degree-\sin73\degree\sin17\degree=....$  

•  $0$  

•  $\frac{1}{2}$  

•  $\frac{1}{\sqrt{2}}$  

•  $\sqrt{2}$  

•  $\sqrt{3}$