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OpenStudy (anonymous):
Find the limit of the function by using direct substitution. lim(x -> pi/2) (2e^x cos x)
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OpenStudy (isaiah.feynman):
Plug in pi/2 for x, and evaluate.
OpenStudy (anonymous):
(2e^pi/2 cos pi/2)
geerky42 (geerky42):
Yes. Now solve it.
OpenStudy (anonymous):
I need help with that
geerky42 (geerky42):
What is cos pi/2?
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OpenStudy (isaiah.feynman):
Pi/2 is 90 degrees, cos pi/2 = 0 @lornbeach
geerky42 (geerky42):
Too much hint.
OpenStudy (isaiah.feynman):
Next time sir. @geerky42
geerky42 (geerky42):
Huh?
OpenStudy (isaiah.feynman):
Next time I will not give too much hints.
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OpenStudy (anonymous):
so pi/2?
OpenStudy (isaiah.feynman):
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