Question

prove
sin^2(x)+cos^2(x)=1

Answer 1

this is for mimi too hard for me

Answer 2

lols , im not that stupid againss to prove it

Answer 3

NO YOU PROVE it

Answer 4

prove it what the....

Answer 5

please mimi help prove this identity

Answer 6

LOLS

Answer 7

mimi i m serious :(

Answer 8

yeah right , im not gullible

Answer 9

plz help and ishaan u and hahd too

Answer 10

she's not falling for it

Answer 11

lana is here too help

Answer 12

!!!!!!!!!!!!!!!!!!!! help

Answer 13

sin t = y/r,
cos t = x/r,
and r^2 = x^2+y^2.
so sin^2x = y^2/r^2 and cos^2x = x^2/r^2.
(y^2/r^2) + (x^2/r^2).
(y^2+x^2)/r^2 = r^2/r^2 = 1.

Answer 14

lolz

Answer 15

explain plz

Answer 16

i cant understand it !!!!

Answer 17

i cant im busy !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 18

mimi will

Answer 19

medal is guranteed

Answer 20

is this a serious question? what is your definition of sine and cosine? the usual one is points on the unit circle in which case there is nothing to prove

Answer 21

(b/c)^2 + (a/c)^2
a^2/c^2 + a^2/c^2
= b^2 +a^2/c^2
c^2/c^2
= 1

Answer 22

mimi and angela help

Answer 23

lols , im jst bored thats why im answering this stupid question lmao

Answer 24

it is not stupid

Answer 25

mimi u r stupid

Answer 26

yes it is (Y))

Answer 27

excuse me , how rude :P

Answer 28

triangle with sides a,b

Take sin and cos, square, add = 1

Answer 29

and u r x3 times stupid

Answer 30

excuse me , yur such a noob x3 is not times 3 :P

Answer 31

is is

Answer 32

huh ?

Answer 33

x3=3 times
mimix3 *3=mimi x9

Answer 34

lolss , such a noob
x3 is not times 3 arghh

Answer 35

hehehehe jst jokin chill out

Answer 36

i know manss :P

Answer 37

im not stupid , im so~ bored *sigh*

Answer 38

lmao :L:L:L