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Right Triangles and Trigonometry Videos 37 videos
Verifying trig identities is important, especially when you're about to let one of them into the country—which is why they should keep their pass...
Sine is the opposite over the hypotenuse; cosine is the adjacent over the hypotenuse; and tangent is the opposite side over the adjacent side....
FYI: cats don't like to get wet. Okay, so that fact won't be relevant every time you solve trig equations, but it happens to be this time.
ACT Math 3.3 Trigonometry 220 Views
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Description:
ACT Math: Trigonometry Drill 3, Problem 3. Can you find the sine?
Transcript
- 00:02
Here's another shmoop du jour...
- 00:04
What is sin of 45 degrees equal to?
- 00:07
And here are your potential answers...
- 00:13
This one should be a no-brainer. Seriously.
- 00:14
We should have the values of the special trig functions memorized by now, and 45 degrees
Full Transcript
- 00:20
is one of them. Sin of 45 degrees is root 2 over 2. We couldn't
- 00:25
have gotten confused with the cosine of 45 degrees either...because that value is also
- 00:30
root 2 over 2.
- 00:31
Our answer's C.
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