Question

What is the simplified form of sin(x + p)?
a. cos x
b. sin x
c. –sin x
d. –cos x

Answer 1

can someone plz help me

Answer 2

do you have your trig formulas sheet?

Answer 3

no actually this is suppose to be Algebra II.... This is hard

Answer 4

are uu talking about the sin, cos, tan sheet

Answer 5

mmmm, that looks like trigonometry to me

Answer 6

sin(x+p) is what I'm reading, did you mean to say \[sin(x+\pi)\]?

Answer 7

on my exam is reads the way I posted it. With the answer choices. My teacher tell s to use rules for a simple periodic function. She has me lost

Answer 8

if it was suppose to be the way u wrote it is the answer in my selection

Answer 9

do you see in your "sine, cos, tan sheet" something like -> http://upload.wikimedia.org/math/a/9/6/a96a80bf599328734b91591338136fcc.png

Answer 10

yes that was in the book

Answer 11

ok, then use the \[sin(\alpha+\beta)\] and work with "pi" no "p" which is the only way you'd get an answer :)

Answer 12

so that is -sin(x)

Answer 13

well, how did you get that?

Answer 14

guessing... but me trying to work it out now I say it would look like sin(x)+sin(pi) but Im stuck

Answer 15

hehe

Answer 16

lol

Answer 17

ok, let me start a bit :)

Answer 18

\[sin(x+\pi) = sin(x)*cos(\pi)+cos(x)sin(\pi)\] now, WHAT is the cos(\pi) and sin(\pi)?
check your "Unit Circle" if you have to :)

Answer 19

cos(pi) and sin(pi) I meant :)

Answer 20

ok its -1, 0

Answer 21

ok, forgetting the "x" sin/cos values, use THOSE numbers in the "pi" sections :)

Answer 22

keep in mind that, when you multiply by "0", no matter whatever factor, it'd yeild "0" :)

Answer 23

ooo so its sin(x)

Answer 24

I say that because -1 times 0 is zero

Answer 25

hold on let me try again had to reread what u said do

Answer 26

ok

Answer 27

ok I really don't wanna sound stupid but I can't figure this out. Can u show me a set up or give a a hint. I really need to learn this. :(

Answer 28

ok

Answer 29

\[sin(x+\pi) = sin(x)*cos(\pi)+cos(x)sin(\pi)= [sin(x)*-1]+[cos(x)*0]\]
now multiply those :)

Answer 30

ok hold on

Answer 31

I get zero

Answer 32

from -> (sin(x)*-1(+(cos(x)*0)?

Answer 33

let's see
sin(x)*-1 + (cos(x)*0) = ?

Answer 34

remember, order of operations :)

Answer 35

would it be -sin(x) because -1 times x is -1 and 0 times x is 0

Answer 36

yes, because -1 times ANYTHING is -1(ANYTHING), and 0 times ANYTHING is 0

Answer 37

but when I choice that on as my answer I got it wrong. I'm with James Madison High school form Ashworth College. they dont help at all thanks. are u will to help another day?

Answer 38

sorry about he misspelled words

Answer 39

sure