Answer :

The formula for the general term of  sequence {1, 0, -1, 0, 1, 0, -1, 0,...} is given by

[tex]a_{n} = cos\frac{(n-1)\pi }{2}[/tex].

According to the given question.

We have a sequence {1, 0, -1, 0, 1, 0, ...}

Since, we have to find the formula for the general term of the given sequence.

Here, the first term is 1.

Second term is 0.

And the third term is -1.

From the given sequence we can say that all the even term is 0 and other terms are followed by 1 and -1.

Therefore, the formula for the general term of  sequence {1, 0, -1, 0, 1, 0, -1, 0,...} is given by

[tex]a_{n} = cos\frac{(n-1)\pi }{2}[/tex].

Find out more information about formula for the general term of the sequence here:

https://brainly.com/question/22210056

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