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Mathematics 13 Online
OpenStudy (anonymous):

simplify the expression: sin^2x+cos^2x+1

OpenStudy (anonymous):

=2

OpenStudy (anonymous):

cos^2[x]+sin^2[x]=1...so 1+1

OpenStudy (anonymous):

2 thx again lol

OpenStudy (anonymous):

your welcome

OpenStudy (anonymous):

Thats another trig identities, Searching up trig identities in google will give you many websites that list a bunch of trig identities

OpenStudy (anonymous):

http://www.purplemath.com/modules/solvtrig.htm

OpenStudy (anonymous):

i have a lot of work due on them tomorrow and i feel like i'm not ready cuz theres a test too >.<'

OpenStudy (anonymous):

Hmm, cramming is frowned upon but if you keep plugging away you might have a chance.

OpenStudy (anonymous):

i've been studying the past 3 days and i do my hw i just hope i don't forget everything ^^'

OpenStudy (anonymous):

You got this

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