Ace school

with brainly

  • Get help from millions of students
  • Learn from experts with step-by-step explanations
  • Level-up by helping others

A community for students.

Please tell me how to do this problem Evaluate : sin(1/4 pie) A) 1 B) 0 C) sqrt 2 /2 D None of these

Mathematics
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Join Brainly to access

this expert answer

SIGN UP FOR FREE
C) sqrt 2 /2
How did u get this?
look at the unit circle on the last page of this cheat sheet.

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

c
you will see that at \[\frac{\pi}{4}\] both the first and second coordinate on the unit circle is \[\frac{\sqrt{2}}{2}\] so both sine and cosine are the same there
you can also do it directly using a triangle but this one comes up so often it is best to memorize it
ok then how would i do a problem like tan( -337 pie /4 )
oh lord. first of all you best find a point between 0 and 2 pi that is coterminal with \[\frac{-337\pi}{4}\]
pie?
myininaya will who you how, because last time i did this i got in a huge discussion mmmm pie
apple pie?
o.o
chicken pot pie
ok fine. lets to it the easy (for me) way \[\frac{-337}{4}=-84\tfrac{1}{4}\] and since 2 divides 84 evenly this angle is co terminal with \[-\frac{\pi}{4}\]
rhubarb pie
what value does pie hold?
does pie=pi?
\[\sin(-\frac{\pi}{4})=-\frac{\sqrt{2}}{2}, \cos(-\frac{\pi}{4})=\frac{\sqrt{2}}{2}\] and since tangent is the ratio of sine over cosine you get -1
so the final answer is -1?
yup
and if you doubt me, here is proof http://www.wolframalpha.com/input/?i=tan%28-337+pi%2F4%29
\[\color{blue}{\text{sk}}\color{red}{\pi}\color{blue}{\text{y}}\]
that, my myininaya, was for you
pie?
c'mon. what did i write?
pi?
nope
what do you see there?
lol this pie concerns me
not your pi his pie
i made a joke. visual pun. ok not that clever but still...

Not the answer you are looking for?

Search for more explanations.

Ask your own question