ANSWER
True
EXPLANATION
The given trigonometric equation is:
We take the LHS and simplify to arrive at the RHS.
Collect LCM on the right hand side to get;
This implies that
This identity has been verified .Therefore the correct answer is true.
An electrician charges a $100 flat fee, plus $75 per hour to work on a house. Complete the table that shows the cost of hiring t
2 answers:
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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.
