English
Senior High
この文章を訳してほしいです
The first pictograms were made on stones and cave walls 。 about 18.000 years ago. They were used to record events and other information. Pictograms later developed into writing Systems such as hieroglyphs im ancient Rgypt and Chinese characters,
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Mathematics
Senior High
丸がついてないところを教えてください。
第3問 三角形ABCにおいて. cosZBAC=- 5 GO G) sinzBAac-YPT oi で・人=6, AC= 8とする。 次の間いに答えよ。 ②
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