Answer:
Step-by-step explanation:
Which choice shows the product of 23 and 39?
2 answers:
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Let the number be x
Then the absolute value of the number from -2 should be 4
So either
Or
[tex] <B>The numbers are 2 and -6</B> [/tex[
They are four units away from -2 on the number line
First of all, we can just ignore A, it has no effect but to vertically stretch our cosine.
If it was only , the function would be invertible as long as it's confined between
and
. Now, the argument of our cosine is not
but
. It means that it won't stop at
, but at
.
Another way to think about it, "what should i replace x with so I get inside the cosine?"