I need to simplify this trigonometric expression. The answer will be given, but please help me with the process.
1 answer:
Answer:
Step-by-step explanation:
I've attached a pic, I used y for sin(theta) and x for cos(theta). Shows all steps. See image.
Step 1: use "factoring sum of cubes" to factor the numerator.
Step 2: in the trinomial, in the numerator, rearrange terms to use the sin^2 + cos^2 = 1 .
Step 3: cancel that factor with the denominator.
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Answer:
Step-by-step explanation:
<u>Value of functions</u>
To evaluate a function for a given value of x, we replace the x for the value and perform the resulting operations.
The given function is (corrected):
We need to find f(-4), so we use x=-4:
Try making a grid like this. Apologies for the terrible drawing and handwriting. It represents all possible results of rolling two dice and summing their values. The blue column and yellow row represent the values of each die, and the green numbers reptesent their sums.
First, you can see that there are 36 possible values. Second, it's easy to see how many results are greater than 9, since they're all in one corner. And last, you can see just how many are even and how many are odd. Remember to reduce your fractions in the end.
First, you can see that there are 36 possible values. Second, it's easy to see how many results are greater than 9, since they're all in one corner. And last, you can see just how many are even and how many are odd. Remember to reduce your fractions in the end.