Which shows the four-term polynomial and factored form of x2 6x – 27? x2 3x – 9x – 27 = (x 3)(x – 9) x2 6x – 3x– 27 = (x 6)(x –
1 answer:
None of the polynomials has four terms in it.
<h2>Polynomial </h2>It is the sum of terms in which the variable is in decreasing power of n.
<h2>Given</h2>Polynomial is in factor form
Thus, none of the polynomials has four terms in it.
More about the polynomial link is given below.
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Answer: Choice A
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Explanation:
Recall that and
. The connection between tangent and cotangent is simply involving the reciprocal
From this, we can say,
In the second to last step, a pair of sine terms cancel. In the last step, a pair of cosine terms cancel.
All of this shows why is identical to
Therefore, is an identity. In mathematics, an identity is when both sides are the same thing for any allowed input in the domain.
You can visually confirm that is the same as
by graphing each function (use x instead of alpha). You should note that both curves use the exact same set of points to form them. In other words, one curve is perfectly on top of the other. I recommend making the curves different colors so you can distinguish them a bit better.