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well, let's try each answer one by one and see what we get, shall we?
help me please my question is at the top of the feed
does that make sense?
I dont understand how cos^2/sin^2 became just cos^2.
I distributed sin^2(x)
see how sin^2(x) cancels out?
Oh yes that makes more sense.
Thank you for explaining that.
ok, so we know that #1 is not the right answer because we get 1 in the end
let's move on to number 2
does this make sense so far?
yes, because you used the Pythagorean identity at the end, right?
yup! ok, we know that #2 is out, because we ended up with 1, so let's move on to #3
now, I believe #3 is the right answer, but let's check #4 just in case
whew, that took a while, but do you understand everything so far? :)
the important thing to remember, is that when you have csc, sec, cot, or tan, you can re-write them in terms of cos or sin, which usually helps you cross things out and simplify :)
Im a little confused with the second step you took.
which one? #3 or #4?
can you tell me exactly which part is confusing?
the step that the arrow is pointing to |dw:1434687552340:dw|
Im confused how that concluded from the previous step, where you substituted the reciprocals.
which leaves me with|dw:1434687748727:dw|
does it make it more clear? or is there something you're still unsure about?
Ok, yes that makes sense.
So that leaves us with choice 3.
Ok, thank you for helping.