zeion
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Homework Statement
Is 3cos22x + cosx2 - 1 a polynomial function?
Are trig functions polynomial fuctions?
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Is 3cos22x + cosx2 - 1 a polynomial function?
stevenb
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zeion said:
What is the definition of "a polynomial function"?
Char. Limit
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Well, this function can be arranged to a quartic in cos(x). As a polynomial in x, however, it's only a polynomial if you allow polynomials of infinite degree.
stevenb
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And so, the OP gets a free answer with no attempt at the solution and no indication that he even understands the question. 
Char. Limit
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stevenb said:And so, the OP gets a free answer with no attempt at the solution and no indication that he even understands the question.
Agh, my bad my bad. Think I should delete or has he already seen it?
stevenb
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Char. Limit said:
Well, it happened on your 1000th post, so you earned a get out of jail free card, and we have to let it go.
zeion
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I already saw it HAHAHA