the function H(x)=sin x cos x/2tan^2x i even. true or false?

Question

amistre64 · Answer

i even?  I assume that means "is even"

amistre64 · Answer

even means reflects about the y axis right?

amistre64 · Answer

if f(-x) = f(x) it is an even function

x^2 = (-x)^2

amistre64 · Answer

cos is an even function and sin is an odd function in general....just recapping my memory here :)

anonymous · Answer

yep, that be always true

amistre64 · Answer

sin(x) cos(x)      -sin(x) cos(x)
---------- =  -----------  ????
 2tan^2(-x)        -2tan^2(x)

amistre64 · Answer

i think I messed up that tan^2(x) part lol  hold on

amistre64 · Answer

2tan(x)tan(x) = 2-tan(x)-tan(x) = 2tan^2(x)

its (+) on the bottom and (-) up top; it aint even then

anonymous · Answer

"All Students Take Calc"
All positive in 1st quad
Sine positive in 2nd quad
Tangent positive in 3rd quad
Cosine positive in 4th quad

anonymous · Answer

yeah, it's not even
it comes out neg

amistre64 · Answer

well of course tan is odd....it looks like x^3 lol   right?

anonymous · Answer

lool
so taaan