Answer:
Some fractions are whole numbers, such as 6/2 or 12/6. But not all fractions are whole numbers, such as 3/4 0r 1 5/8.
The whole numbers are the counting numbers (1,2,3,…) and 0. The fractions are the numbers that can be written in a/b form providing that b is not 0. So you can see that the fractions include the whole numbers.
Also, the fractions are a dense set. In other words there is a fraction between any two fractions. But the whole numbers are not dense. In other words there is no whole number between 2 and 3, for example.
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I'm assuming that's a sin²(x), and not a sin(2x), right?
First, collect the terms.
7sin²(x) - 14sin(x) + 7 = 0
Factorise the quadratic.
Due to the high numbers, I'm going to use the quadratic formula to factorise the quadratic.
(-b ± √(b² - 4ac)) / 2a
Therefore
sin(x) = 1
(for both negative and positive of the quadratic formula)
Refer to the quadrant diagram.
sin(x) is a positive, meaning our answer will be on the first and second quadrant.
x = arcsin(1) = 90°
Since you don't provide an interval in your question, I'm going to assume that the interval is 0° ≤ θ ≤ 360°.
Referring again to the quadrant diagram, the solutions are going to be:
<span>θ = </span>90°, 180°
1 times 108 because the normal height for a skyscraper is usually way more than any of those
The answer is in the question. The question says he used 2/3 of it to make sandwiches. Unless your asking what 2/3 of 7/8 is then the answer would be 7/12.
you just multiply the top numbers together and the bottom numbers together and then reduce.
Answer: not sure what the question it is that you asking but yeah, it increased by a 1.19…