April 2012
135 posts
Apr 20th
juliajellyfish asked: Thank you so much! I can be very quick to learn things when it comes to math. But I make mistakes a lot and I am prone to doubting myself. I just wanted to make sure I was on the right track. So I just tried to do the first problem. And after fumbling around, I think I came to an answer. For the problem: 6cos(x) + 6 = 4 sin^2(x) would the answer be -1/2? I ended up using identities to get the...
Apr 20th
Ask me maths: blindtillnow: Find all solutions on... →
blindtillnow: askmemathsquestions: blindtillnow: Find all solutions on [0,2pi] of the following: a. 6cos(x) + 6 = 4 sin^2(x) b. sin(2y)sin(y) = cos(y) c. 2cos^2(q) - 9cos(q) = 5 I’m just sitting here, like “herp derp.” i will solve the third for you. let cos(q) = u 2u^2 -9u-5=0 2u^2 - 10u + u -5 =0 2u(u-5)… OH my god, you’re a math fairy god! That made so much more sense than my...
Apr 19th
8 notes
blindtillnow: Find all solutions on [0,2pi] of the following: a. 6cos(x) + 6 = 4 sin^2(x) b. sin(2y)sin(y) = cos(y) c. 2cos^2(q) - 9cos(q) = 5 I’m just sitting here, like “herp derp.” i will solve the third for you. let cos(q) = u 2u^2 -9u-5=0 2u^2 - 10u + u -5 =0 2u(u-5) +1(u-5)=0 (2u+1)(u-5)=0 gives u=-1/2 or u=5 rem we took u as cos(q) now cosine of any value never exceeds 1 so...
Apr 19th
8 notes
Apr 19th
4 notes
Apr 18th
12 notes
Apr 18th
447 notes
Apr 18th
3 notes
Apr 18th
1,377 notes
Apr 18th
2 notes
Apr 17th
2 notes
Apr 17th
25 notes
4 tags
Summary in a tabular form about parabolas.
This is  summary in tabular form of parabolas,and how to solve em. the complete tutorial of solving parabolas is divided in two parts and can be aceesed here, part 1 part 2
Apr 17th
3 notes
6 tags
Conic Sections. Parabola-Complete tutorial. part...
This is second tutorial of parabola. the first tutorial of conic sections,parabola is already uploaded.
Apr 17th
3 notes
6 tags
Conic Sections. Parabola-Complete tutorial.
this is a tutorial on conic sections,parabola. The tutorial is intended to be self explanatory. It is divided in two parts. this is part 1
Apr 17th
2 notes
Math Help Needed
morbidmandy422: So yet again I had a huge pile of math work. I finished most of it, but I’m stuck on about 10 questions. Could anyone help me out/show me how to do these? Thank you! post em to me. I might help
Apr 17th
1 note
Ramblings of a Lebanese Toaster:... →
lebanesetoaster: allar0undbadassery replied to your post: Why can’t I be the kind of person who just bitches her teacher out on an epic level? JUST LET ME EMAIL HER I just emailed her. Again. Nicely. It was the shortest fucking email, because anything else I would have said would have come off… post em to me
Apr 17th
2 notes
1 tag
Apr 16th
8 notes
1 tag
Apr 16th
3 notes
1 tag
K. A.: (PART 1) IF ANYONE CAN ANSWER ALL OF THESE... →
loveisallthingsmaroon: Please provide steps so I can follow how you got your answer. I really need help! ————————————————————————————————- QUESTION 4: (4-√3)(12+5√3) QUESTION 5: Rationalize the denominator of 5/√3 QUESTION 6: (5+√3)(5-√3) QUESTION 7: Identify the conjugate of 3-√2 QUESTION 8: √5(10-4√2) http://askmemathsquestions.tumblr.com/post/21197762898 here you go
Apr 16th
3 notes