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Serhud [2]
2 years ago
7

The point P on the circle x2 + y2 = r2 that is also on the terminal side of an angle θ in standard position is given. Find the i

ndicated trigonometric function.
(3, 4) Find sin θ.

the answer options are attached, if you could show the work or formula that would be great Thanks!

Mathematics
1 answer:
Brut [27]2 years ago
6 0
Okay so you do not really need the circle equation. if you make a triangle with it's x length as 3 and it's y length as 4, you will be able to find the third length. Do Pythagorean theorem to find the hypotenuse. 
the hypotenuse will be five after you calculate it.

sin is opposite over hypotenuse or Y over R

so... the sin is 4/5

make sure you know what  quadrant your triangle is in for the negatives
 
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write about which method you prefer to use to divide by 5 counting up, counting back on a number line, or dividing by 10, and th
maria [59]

Answer:

In First method : counting up, counting back on a number line,

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In Second Method : dividing by 10, and then doubling the quotient.

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Now, when we compare the above methods then we conclude that for the smaller numbers first method is appropriate because for small numbers we can easily count total 5's from 0. While for large numbers Second method is appropriate because it is hard to count the total 5's for the large number.


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barxatty [35]

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Vsevolod [243]
Both have the same denominator
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5=n
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