金陵中学河西分校国际部

中美课程

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发布时间：2016-04-12 浏览次数：1609

＊Review：do a quick practice by group

l North groupfinish following question:

(1)Give six trigonometric function of angle a, if a is in the circlewith radius r.

(2)Give period of sin a

(3)Give domain of sin a:

lsouth group finish following question:

(1)Give rang of sin a tan a;

(2)Give period of tan a and cot a ;

(3)List signs of sin cos tan cot if a is in quadrant II.

＊Content-the key knowledge:

lfundamental identities

lfind exact value of trigonometric function.