Question

What even .-.

http://prntscr.com/67hgl5

Answer 1

make a common denominator

a/b +c/d = (ad+bc)/bd

Answer 2

\((1-a)(1+a) = 1-a^2 \)

Answer 3

wait a second...would the common denominator be 1-cos^2x?

Answer 4

ugh I'm literally half asleep right now lol v.v

Answer 5

yup.....

Answer 6

alright...not sure what you would do from there, but that means the answer has to be either b or d

Answer 7

yeah...:)) whats ur answer??

Answer 8

I'm leaning towards D, but I'm still not completely sure

Answer 9

u should give another try....

Answer 10

@hartnn any thoughts/wisdom/tell me what I did right/wrong?