Question

To three decimal places, find the value of the first positive x-intercept for the function f(x) = 2cos(x + 3)

Answer 1

\[\frac{5\pi}{2}-2\] is what i was trying to suggest in the last post

Answer 2

okk actually \[\frac{5\pi}{2}-3\]

Answer 3

1.712

Answer 4

but then i get -1.429 and thats the wrong answer

Answer 5

\[x=\pi \div2-3\]

Answer 6

i got the same ansewer tho

Answer 7

do you have answer for that?

Answer 8

-1.429..

Answer 9

im confused that answer isn't correct though bc i checked w my teacher and the answer is supposed to be postive thats all i knwo

Answer 10

I need to check again..there can be a mistake