✨ Best Answer ✨ はなえ almost 4 yearsago 1/cos²xだと思います！ tanx=sinx/cosx た almost 4 yearsago ありがとうございます😭 Post A Comment
![x>0という条件をつけなくていいのはなぜですか？？例えば⑴の[2]のとき、もしxがマイナス... - 1](https://d1e9oo257tadp1.cloudfront.net/uploads/qa_question_image/file/1803395/thumb_l_webp_01E8B167-DD37-4DC9-888B-69652610F6E4.webp?Expires=1781226030&Signature=SnbU8kSlNpYp7VEP672urEyQFWKVR6txQKOGT~obEVhEzfhNh~Oic6e1CyV-VWDgIdY8~6cJ-FlHQZ9V5qJuAe8oTT9NgsIhOK~S9Tdz5yHbhl6t7x6aht2mg410OWFhBK1xqHI~d~64yl8eQMP4rum5OxMpb6rYKodtCev1SrdSoD12oBWH-0-EGd3AtZi5dRMtAKTQ~6fcWjR9mRzjQ4hKCz1O8p1H~cLwPvz2sB6SUe4azforFXEWclSHTkkTavjAMrSoLSuvq9caoeGNNB7W74O8CdZPjSzvf9EeY9xsHSMIGuS-cdnVgPe0ts~6TCBxLR-GNdsgZIHlfctqoQ__&Key-Pair-Id=K2W722D70GJS8W&Expires=1781226030&Signature=oc01e77nqrKMQV5uJNx3o1SaSyiTWTkCecq~xQ7ncz7sKbuYhOr22EBdvJBTU8H0werGGmB8nvP-GPoDm0FvkdkY6H38YtszDHzfhVYNi0XTSZK6gh1iHCz-0~FQsG7lsQErIJ5rKGYFNX28DMaY~tFRz8DSJ0L-cOajbXoQPcop9mKmwaQ0-0EAWW6aTGEj1KXRzpNua87miEpW79a4bWlF1uRwLxybfaWqhHBYHgMAnc06WC8nKOC8fo2XK8DrXaBiq1YBu7QspO~eZqVXD3a91a9T3k9wjzw-Y-zccPdVqV9LSidGlo3jISgc7jF83gaZsu7bIxiiMiz0zxX5xA__&Key-Pair-Id=K2W722D70GJS8W)
ありがとうございます😭