/wsr/ - Worksafe Requests » Thread #53810

[8 / 1 / ?]

Anonymous Wed 10 Feb 2016 06:22:18 No.53810 View View Reply Original Report

Quoted By:

How the are you supposed to simplify sin(2t)-tan(t) any further?

Every website I've looked at recognizes that form as the simplest.

Anonymous

Anonymous Wed 10 Feb 2016 06:41:47 No.53832 Report

Quoted By:

Maybe they consider sin(2t) to be more complex than 2sin(t)cos(t)

Anonymous

Anonymous Wed 10 Feb 2016 07:00:24 No.53841 Report

Quoted By: >>53847 >>53850 >>53856

Sin (2t) - tan (t)
2sin (t)cos (t) - sin (t)/cos (t)
[Sin (t)/cos (t)]•[2cos^2 (t) - 1]
Tan (t)•[cos (2t)]

Yeah I need more context to know what they consider to be more simplified.

Anonymous

Anonymous Wed 10 Feb 2016 07:11:19 No.53847 Report

Quoted By:

>>53841
You helped a lot. Just trying to make sure I completely understand the transitions.

Anonymous

Anonymous Wed 10 Feb 2016 07:18:14 No.53850 Report

Quoted By:

>>53841
How did you go from:

2sin (t)cos (t) - sin (t)/cos (t)
[Sin (t)/cos (t)]•[2cos^2 (t) - 1]

on the right side. I understand relating the first part to 2cost^2-1, but how do you go from subtracting sin (t)/cost(t) to multiplying it?

Anonymous

Anonymous Wed 10 Feb 2016 07:21:13 No.53853 Report

Quoted By:

Fuck off, nerds :)

Anonymous

Anonymous Wed 10 Feb 2016 07:29:42 No.53856 Report

Quoted By: >>53869

>>53841
I don't understand where the negative symbol for sin (t)/cos (t) goes? I've seen the end result one other random place as an option, but I've yet to see how you turn:

2cos^2 (t) -1 - tan (t)

into

tan (t) 2cos^2 (t) - 1

Anonymous

Anonymous Wed 10 Feb 2016 08:26:58 No.53869 Report

Quoted By:

>>53856
Factor out sin/cos. I sorta skipped a step.

2sin (t)cos (t) - sin (t)/cos (t)
2sin (t)cos^2 (t)/cos (t) - sin (t)/cos (t)
[Sin (t)/cos (t)]•[2cos^2 (t) - 1]

Does that help?

Capcode	All Only User Posts Only Verified Posts Only Moderator Posts Only Manager Posts Only Admin Posts Only Developer Posts Only Founder Posts
Show Posts	All Only With Images Only Without Images Only Spoiler Images Only Non-Spoiler Images
Deleted Posts	All Only Deleted Posts Only Non-Deleted Posts
Ghost Posts	All Only Ghost Posts Only Non-Ghost Posts
Post Type	All Only Sticky Threads Only Opening Posts Only Reply Posts
Results	All Grouped By Threads
Order	Latest Posts First Oldest Posts First

On these archives

Your latest searches