高二數(shù)學(xué)三角函數(shù)全章復(fù)習(xí)(更新版)
【正文】 a n (),c o s (,31c o sc o s,41s i ns i n)8?????????????????求若xxxxx4s i n,2c o s),2(,61)4s i n ()4s i n ()9求????????????????????t a n4 0t a n2 03t a n4 0 t a n2070s i n30s i n50s i n10s i n)10的定義域求定義在）)21( c o s],41,0[)()51t a n)32c o s (ln4 ) y 32s i n22t a n)3)23( c o sl o gs i n21)2t a n2c o sl o g2122?????????????xfxfxxxxyxxyxxy?二：求定義域 ]2,2[,c o ss i nc o ss i n)5c o sc o ss i n2s i n3)4c o ss i n32c o s21)31s i nc o s3)2]2,2[,2c o ss i n122?????????????????????xxxxxyxxxxyxxxyxxyxxxy）三。定義域，值域，最小正求 )]4s i n (2[l o g)4 ??? xy
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