Question

PLEASE HELP ASAP
http://prntscr.com/f8nbja

Answer 1

\[(\sin \theta +\cos \theta)^2 \] is same as \[(\sin \theta+\cos \theta)(\sin \theta +\cos \theta)\] familiar with the foil method ?

Answer 2

yep... i think its C I just want to make sure.. I already answered them all I just want to check

Answer 3

\[(a+b)^2= (a+b)(a+b)= a^2+2ab+b^2\]

Answer 4

ok

Answer 5

ok

Answer 6

C isn't correct. Please post your work so I can point out the mistakes.

Answer 7

\[(\sin \theta+\cos \theta)^2\] how would you foil this ??(look at the example above)

Answer 8

you will do distributive property right?.... seperate both and then multiply by each to get sin0^2+2sin0cos0+cos0^2 right? Sorry this app doesn't let you know when they answer and I didn't know

Answer 9

yes that's correct. \[\rm \sin \theta - \cos \theta -( \color{red}{\sin^2 \theta+\cos^2\theta}+2\cos \theta \sin \theta)\]
apply the fact \[\rm \color{red}{\sin^2 \theta+\cos^2 \theta =1}\]\[\rm \sin \theta - \cos \theta -( \color{red}{1}+2\cos \theta \sin \theta)\]
Distribute the parentheses by -1.

Answer 10

So now would we just add common like terms?

Answer 11

and I don't know how this works but if I wait till you are done helping me and choose your answer as the best will you get more points or is it the same if I choose you now?

Answer 12

Don't worry about points.
Back to the queston: do you see any like terms ?? :=)) o^_^o

Answer 13

Not really so if there isn't we leave it like that and it would be D right?

Answer 14

yes that's correct!

Answer 15

Thanks I have 2 more I wanna check could you help me?

Answer 16

sure

Answer 17

http://prntscr.com/f8nuoi

Answer 18

Thanks

Answer 19

I was really confused on this and I didn't quite get it so I looked it up and I found that....

Answer 20

I was hoping its going to be trig :P but oh well
wait a second

Answer 21

ok

Answer 22

Yeah I saw that and they showed the steps and t gave them C but I wanted to make sure

Answer 23

I have a last one and I will leave you alone

Answer 24

http://prntscr.com/f8nz0w
I am pretty sure it is D but I don't wanna take the risk cuz I barely knew the material cuz i was behind so I tried to learn it fast

Answer 25

I can understand

Answer 26

Thanks

Answer 27

looks good

Answer 28

Thanks so much I will tell you what I got

Answer 29

no no I hate seeing the grades

Answer 30

Oh sorry to late

Answer 31

ohh cool nice work!

Answer 32

haha thanks gtg I owe you big bye

Answer 33

bye have fun!

Answer 34

I have volleyball practice rn so u basically saved my life

Answer 35

nice. Have fun!!