Mathematics
Senior High
これはどうやって解くんですか
至急お願いします
* 途中式も書くこと。 丸付けまでして提出。
500 <2のとき、次の方程式, 不等式を解け。
(1) sin (20+
1
7)
√√2
(2) cos(20+)<-√7
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