how to find the exact value of tan π/2 − sin 3π/2?

Question

owlfred · Answer

Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

anonymous · Answer

-0.054731569

anonymous · Answer

http://www.intmath.com/trigonometric-graphs/4-graphs-tangent-cotangent-secant-cosecant.php tan (pi/2) = undefined.... so, you have no definite answer for this problem

anonymous · Answer

yeah, that can be

anonymous · Answer

EXACT answer is not the decimal above.

anonymous · Answer

i got the mistake.

anonymous · Answer

yeah i know. i plugged in the wrong one.

anonymous · Answer

tan pi/2 is undefined, so there is not an answer.  is this typed incorrectly?  should it be pi/4  ?

anonymous · Answer

0-0=0

anonymous · Answer

it's right the teacher made it up. I'm recently learning trig.

anonymous · Answer

undefined - (-1) = undefined  :)
don't you think

anonymous · Answer

Actually 0-(-1)=1

anonymous · Answer

Don't look at the graph which is undefined, but exact answer create a triangle: the tan is 0

anonymous · Answer

ye4ah you are right.

anonymous · Answer

No, I take my answer back I was reading it sideways 1/0 is not zero. Undefined