# Math Help - cosine problem

1. ## cosine problem

Find the smallest number 'x' such that cos(ex + 1.2) = 0

Give exact answer in terms of elementary functions.

2. ## Re: cosine problem

Originally Posted by jonathanraxa
Find the smallest number 'x' such that cos(ex + 1.2) = 0
Give exact answer in terms of elementary functions.
Let's see, is that a request for help or a demand for a solution?
I am not sure why you have the right to demand help. Do you?

3. ## Re: cosine problem

Originally Posted by jonathanraxa
Find the smallest number 'x' such that cos(ex + 1.2) = 0

Give exact answer in terms of elementary functions.
Have you tried thinking about the values of \displaystyle \begin{align*} \theta \end{align*} which make \displaystyle \begin{align*} \cos{\theta} = 0 \end{align*}?

4. ## Re: cosine problem

No, this is directly off my homework. I definitely do not have the right to demand help. I'm just terrible at math and for the questions I do not know I put them on here for people to perhaps help me, but apparently I'm getting help with the way I ask my questions.

5. ## Re: cosine problem

To be fair I think that line was part of the question.

6. ## Re: cosine problem

cos(e^x+1.2)=0