Question

what is the value of tan90°

Answer 1

My answer Since the value of sin π/2 is equal to 1 while the value of cos π/2 is equal to 0, the value of tan π/2 should be equal to 1/0. Now, 1/0 does not necessarily equate to infinity since a number when divided by o gives an undefined value.

Answer 2

the value of tan 90 is not defined or it is 1/0

proof:

sin90/cos90 =1/0 =not defined