Prove that: (1-cotan 22)(1-cotan 23)=2.

Name: Prove that: (1-cotan 22)(1-cotan 23)=2.
Uploaded: 2024-07-05T17:11:43
Duration: PT2M18.624S
Description: Prove that: (1-cotan 22)(1-cotan 23)=2.