please help me understand sine, cosine, tangent, cosecant, secant, and cotangent. i'm really confused. i know the ratios and stuff, but i don't understand how to do it on a calculator...my course says that cos 65 is 0.4226182617, but my calculator is getting -0.56245385123?

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aripotta · Answer

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aripotta · Answer

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aripotta · Answer

@nincompoop help! :c

anonymous · Answer

check for whether ur calc is in degree or radian mode?

aripotta · Answer

i used google's scientific calculator...how do i check that?

aripotta · Answer

oh wait! i got it, thanks :)

aripotta · Answer

sorry about that, guys lol. i feel stupid :l

anonymous · Answer

:)
let me see..I never used google scientific calc

anonymous · Answer

hey...it's fine..:)
u need not to feel stupid for this.

aripotta · Answer

the top left-hand corner is where you can switch it, thanks for telling me about it!

anonymous · Answer

:)

aripotta · Answer

nope, i'm good. thanks :)

aripotta · Answer

how do you know when to use degree or radian mode?

aripotta · Answer

but i got two totally different answers

aripotta · Answer

idunno. that link you sent me days ago?

aripotta · Answer

what's the pre-cal ebook?