Mathematics
SMA
Terselesaikan
COS π/2究竟是多少？π不是180°嗎？可是COS90°=1不是嗎？我還用計算機按出了COS90°= -0.5？！而解答說= -1？？？
Answers
_1.webp?Expires=1749688584&Signature=KjIjtTI48nnXx5GZS0rHgf8AF25LFDQfrU2tLcymLfR2aOo9b~eYu4hKZEGvrp5CZnEidsWrno4VyDA5DSHcCoCNFIIB5UX9XYnaLw7CKPm6j44ek5iCZlP-kIHy4~YyYqlj2mgPEJMKyPGr~RvguPcnBErCEo7JXHQ8OSGHlUgrq9FCOho6hESxCrG7d80Qn4gg~31vhilUU7RKWbN6l-Xxoak4PyDynLN8z99Cd2Lk6P6m5aNxuDXFfTs5pDhx~1mWsZQZbG~iyspj9If8oqj4wrQCDWOwXLqhN1noXoSOa-dJU50oTksUK5haMsBWPXrSOsnfTT0MQjZqc7cm~Q__&Key-Pair-Id=K2W722D70GJS8W&Expires=1749688584&Signature=P247CuPA9VsDfBFYw5A~jp5hNrbn1ox-CxfVr3zrsW1K319x9aHbmjL3QbigfZktxdQPGCgemUXdnL-gRXq52IGKPE8bSN0f-yKX7ktBPoIsWFQp3bmNlilYJv99L~NSV8pkfJiD4atFIiAyUtA1gSsoqu-QD~CHAMRSidoltm5pZqfV8B1m~QPiu~iGe1Gs15CJ7AelONLIsOD14Gctui5iwE~pYXHM-dhtBV~Jb1YiFK6AM52nvDZMndouEi3D5U7M2V56j-Mh5nbg9ZIAml6z1aB-R9ADTxA9H7u~DCxAkWX8CTJzTZhDpZDfynXuPuCLwTupcpmJQ-j~l9gSxQ__&Key-Pair-Id=K2W722D70GJS8W)
Answers
Apa kebingunganmu sudah terpecahkan?
Pengguna yang melihat pertanyaan ini
juga melihat pertanyaan-pertanyaan ini 😉
哦.....原來如此，謝謝！