SOLUTION: How to find: cot 90 Tan 90 is undefined, so I thought cot 90 would be undefined also. However, "undefined" is not the answer given in the back of my textbook.

Algebra ->  Trigonometry-basics -> SOLUTION: How to find: cot 90 Tan 90 is undefined, so I thought cot 90 would be undefined also. However, "undefined" is not the answer given in the back of my textbook.      Log On


   

Question 735208: How to find: cot 90
Tan 90 is undefined, so I thought cot 90 would be undefined also. However, "undefined" is not the answer given in the back of my textbook.
Answer by MathLover1(20855) About Me  (Show Source):
You can put this solution on YOUR website!
cot%2890%29=0
tan%28+90%29 is undefined, and cot%2890%29=1%2Ftan%2890%29=1%2Fundefined=0