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egbeach
 one year ago
Find the limit of the function by using direct substitution.
lim(2e^x cos x)
x> pi/2
egbeach
 one year ago
Find the limit of the function by using direct substitution. lim(2e^x cos x) x> pi/2

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freckles
 one year ago
Best ResponseYou've already chosen the best response.2do you have a problem pluggin in pi/2?

egbeach
 one year ago
Best ResponseYou've already chosen the best response.0i just have no idea how to solve this problem

freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[\lim_{x \rightarrow \frac{\pi}{2}}2e^x \cos(x)= 2 e^{\frac{\pi}{2}} \cos(\frac{\pi}{2})\] by direct substitution we can use direct substitution since the function exists at the thing the x is approaching

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im on the problem below

freckles
 one year ago
Best ResponseYou've already chosen the best response.2can you finishing simplifying

egbeach
 one year ago
Best ResponseYou've already chosen the best response.0thats the part i am having problems with.

freckles
 one year ago
Best ResponseYou've already chosen the best response.2so you aren't sure what cos(pi/2)=?

freckles
 one year ago
Best ResponseYou've already chosen the best response.2you can use the unit circle of the calculator if you want

freckles
 one year ago
Best ResponseYou've already chosen the best response.2cos(pi/2) should be zero either way

freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[\lim_{x \rightarrow \frac{\pi}{2}}2e^x \cos(x)= 2 e^{\frac{\pi}{2}} \cos(\frac{\pi}{2}) \\ =2e^{\frac{\pi}{2}} (0)=?\]
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