Question

Find the limit of the function by using direct substitution.

Answer 1

@geerky42

Answer 2

i am a little confused on this one, i keep on getting pi/2 but i do not think it is right

Answer 3

direct substitution means you just plug in value it approaches to, so plug in \(\dfrac{\pi}{2}\)

HINT: what is \(\cos\left(\dfrac{\pi}{2}\right)\)?

Answer 4

i do not have a scientific calc at hand, one sec im gonna go online to find one

Answer 5

0.99 @geerky42

Answer 6

none. do you know how to use unit circle? http://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Unit_circle_angles_color.svg/720px-Unit_circle_angles_color.svg.png

Answer 7

1

Answer 8

\(cos(\pi/2)=1\) ?

Answer 9

yes

Answer 10

oh wait, 0?

Answer 11

i get cos and sin mixed up

Answer 12

yeah it's 0

so 0 times 3e^(π/2) = 0

So your answer is 0. is this clear?

Answer 13

yes, thanks!