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Tori V.
Undergraduate Psychology Major
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Trigonometry
TutorMe
Question:

If the tan(x)= 3/4 in a basic right triangle with x being the bottom right angle, the what does sin(x)= ?

Tori V.
Answer:

If the tan(x)= 3/4 that means the hypotenuse is equivalent to 5, making the sin(x)= 3/5.

Psychology
TutorMe
Question:

What is the Phi Phenomenon and an example of it?

Tori V.
Answer:

The Phi Phenomenon is the illusion that movement occurs when two or more adjacent lights begin blinking in succession of one another. An example would be the lights on a loading symbol on either a phone or other device: the loading symbols are actually moving but rather are cycling through a pattern of being lit up or dark in order to give it the effect that it is in fact moving.

Calculus
TutorMe
Question:

Find the first and second derivative of the following function: f(x)= x^3-4x^2-16x+87

Tori V.
Answer:

f'(x)= 3x^2-8x-16 f''(x)= 6x-8

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