Question

thanks

Answer 1

\(tan (\dfrac{\pi}{4})=?\)

Answer 2

yep

Answer 3

wait lol check the pic

Answer 4

=? not yep :)

Answer 5

hey, should remember this "golden " point. pi/4 is a special point whose cos = sin, and tan =1

Answer 6

oh, no, it is not d)

Answer 7

\(cos^{-1}(tan (pi/4)) = cos^{-1}(1)\)

Answer 8

and we know that \(cos^{-1}(a) = \theta\) implies that \(cos \theta = a\)

Answer 9

you have \(cos^{-1}(1) = ? \) that is \(1= cos ?\)
when ? = 0, cos 0 =1, right?

Answer 10

yea but its not a choice

Answer 11

yes, you are correct, like I deal with myself when noone make a conversation with me

Answer 12

how about c) which says 0??

Answer 13

yea lol forgot about that haha thanks