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I have to find x and y intercept of this function

y= cos(e^(-x) + 2)

This is what i have done so far, to find the x intercept i put y= 0

0= cos(e^(-x) + 2)

can i use Cos (A+B)= CosA CosB - SinA SinB here

if i use that then i get

0= cos e^(-x) cos2 - sin e^(-x) sin2

i dont know what to do next. Please help, thanks.

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# Homework Help: X and y intercept

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