At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions.

See more answers at brainly.com

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions

where is point S?

Um, idk, I think S is the focal length

Is this what it asks?

idk, i don't understand the question, i just don't understand parametrics xD

Can you help ?

I don't know what the question is asking for.

You must provide more details.

Oh yeah I forgot sorry
a) Prove (i) OS=OA (O is vertex, S is the focus)

Don't you have to solve it or something to prove that OS=OA like finding the equation of tangent

for the question a) OS=OA, I don't think so.

i think you will use it when you are going to solve other questions

Okay, I will draw the diagram that I drew can you check if its correct ?

no problem.

|dw:1318745104246:dw|

Is it right ?

for now, you don't need to worry about the other P, just to solve the question will be OK.

Okay, how can I solve it ?

PS=PN, P is the point on the parabola----the definition

Okay thank you. But one more how can I prove ON=OT, do I use the same definition ?

wow~ thank you. I drew it totally wrong *sigh* I just don't understand parametrics.

Yeah, I should practice on it. How would I know if its vertical or horizontal ?

X^2=something*Y is vertical, Y^2=something*X is horizontal.

Oh I get it, thank you very much ^_^

You are welcome. I am a PHD student, so heyhey.

Cool~ PHD student. Wonder why you're smart.

Lols, I'm afraid it esp parametrics, its like so~ HARD.

of it*

Oh cool~

Okay, I will work it out.