この2問の解き方を教えてください🙏🏽 - Clearnote

Mathematics

Junior High

over 7 yearsago

この2問の解き方を教えてください🙏🏽

x sin 120" xtan150" cos60" の値を求めよ。時 cos110* + sin 160"十cos170" の値を求めよ。

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