Find the value of x to the nearest tenth

tan x° = 90

The inverse of tan (90) equals 89.3634 degrees.

To the nearest tenth, x = 89.4

First take tan to the other side making it the inverse of tan. Then you put it in your calculator: Shift 2ndF tan 90 and you should get the following answer.

X=tan^-1 (90)

X=89.4