Question

HELP WANTED!!!!

USE THE FACT THAT THE TRIGONOMETRIC FUNCTIONS ARE PERIODIC TO FIND THE EXACT VALUE OF THE GIVEN EXPRESSION.

TAN (405° )

Answer 1

405 degrees is coterminal with 45 degrees because 360+45=405

Answer 2

I don't know how to use periodicity, but you can use the formula\[\large \tan(a+b)=\frac{tana+tanb}{1-tana\times tanb}\]

Answer 3

Oh ok that makes sense :)

Answer 4

so now , tan(405) = tan(45)

Answer 5

or you can do that ^^^

Answer 6

absolutely nothing wrong with that...

Answer 7

Yeah but your solution is way easier and faster..and actually does what the question expects you to do :D

Answer 8

ALRIGHTY THANKS GUYS

Answer 9

yw...