Mathematics
Senior High
Solved
なぜt-2π=xと置くという考えになるのですか
次の極限を求めよ。
sint
t-2л
(1) lim72-42
[東京電機大]
1) t-2π=x とおくと
t→ 2 のとき
x0
lim
sint
よって
lim
sin(x+2)
sinx
t-2π t²-4π²
=lim
2
x―0 (x+2л)²-4π²
=lim
x-0 x²+4πx
-lim, sinx
=lim
1
1
=
x-0
x
x+4π
0+4π
4π
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
![次の極限を求めよ。 sint t-2л (1) lim72-42 [東京電機大]](https://d1e9oo257tadp1.cloudfront.net/uploads/qa_question_image/file/1726142/webp_9C965B93-342A-4FE3-BDB2-AD26AAAFE16F.webp?Expires=1787269160&Signature=RDkz6LtexkoYCQb-3npzFfyAFOoUm8k~N2n4Z3i-ydoa-cYvM4xlnFL8CVjEdpZlsMVgIe0RO81NsozaUmQscPECogo5w0ETYIBgzk3KBjcz-lGuDD-fX579ur4ACCwySH3eUpCnsHZXUXDbPJ4SiKS2kt3rfEGj2MdKL7gQ6uuXTAcMMnXI2~yeSAPlaLMP9O9cXjnPLQNu0ut1~xFfflCiZpMBayD9wfaojXQ7bGbpACdD9w04jiDMBfGyrpnLzvAQC9w~9bT4Fhfov9W4NCtpnHquZofQc1QXD5F~JoniavZ2HjTJHSLYm5XbiQiTfG1yDp3mtZfddZXFENFZHQ__&Key-Pair-Id=K2W722D70GJS8W&Expires=1787269160&Signature=AzWZHBqiv9L9EPShH1pVu5E~0h3vtQj~Xqj7atFUqFaUUrbqJonR24OXj9YVzGy41T5aQ~XHIYYIO0MUlXTuItLlAp9WKG8ll5nIDBzbwLKgoVvyIhilcaBDRfvwqzUww~pz7ciChCDCtiMUdA2qb70oQAnIBTa01pQOB6TeUkaBPst~UH6dWrXWyXANlkMnmOq7lZKpWaQutWeAoJpbRBJz3bM7w~gw2rS2S5RnVe5WEBqzDZv8We~TH42ZoAJQQyi5RQuDJh64LkvZrklQDq3y1YSV4fWRZ4EuskHAq78Jzc3MYakYLVJGk8gDm8PS060VVA-RYAx1tV68m8M4AQ__&Key-Pair-Id=K2W722D70GJS8W){kind=link}
ありがとうございます