An easy way to distinguish between trig and inverse trig functions is that : In trig functions the INPUT (or what goes within brackets) is theta whereas in in the inverse trig functions the INPUT is the reverse, meaning it is sin theta or cosine theta or tan theta etc. So since the INPUT is reversed hence the OUTPUT will also be reversed. Think of REVERSAL of INPUT hence OUTPUT.
Mr. McLogan's Math Channel I probably did not say anything original except that being simple minded I like to think in everyday terms like "input" and "output" with the output written before the input. The term "function" is another term for the output. Also that the terms sin, cosine and tan etc. are mere ratios of the sides of a right triangle. Perhaps a bit of necessary jargon.
thank you so much this is honestly so helpful i have a test on this tomorrow and you explained the topic so well, better than any other video ive seen so thank you so much!!!!!!
Could you please put the episode no. so if I missed out something that I need for the lesson, I could go and check it.If it's okay.I am very pleased with all of your explanations. Thanks.
Hi Job, I do not have my lesson videos organized in sequence on TH-cam since I have so many of them. However I do have Master videos organized in sequence on my channel, paid courses available that go in sequence and my website also has many of my playlists ordered. Hope that helps
thanks, your videos are really very helpful. I've been watching them for a long time and I really understand what you explain. Is impossible don't understand. Great Job
And why not just show them the tangent graph for the student who doesn't understand where tan becomes 0 and undefined? That should be far more intuitive than unit circle, imho.
Shouldn't the range for arctan be(-π/2 , π/2) open interval
yes open interval
I was stuck on this until I saw your video, thanks a lot!! Just moved to America to study so those videos are so helpful^^
I appreciate that you don't cut your student's questions. These help a lot!
i love that you really break the problems down instead of assuming we know what you're doing. THANK YOU!
You helped me last year, and now you're helping me again. You are a Boss. Thanks a lot sir.
+Kaylin Felix : ) happy to help!
This helped me a lot, but I have a question. Have you fixed the caps on you markers, or do you do that on purpose?
Wow!!! I can't believe it's this simple. The way he explained it was so clear
happy to help
An easy way to distinguish between trig and inverse trig functions is that : In trig functions the INPUT (or what goes within brackets) is theta whereas in in the inverse trig functions the INPUT is the reverse, meaning it is sin theta or cosine theta or tan theta etc. So since the INPUT is reversed hence the OUTPUT will also be reversed.
Think of REVERSAL of INPUT hence OUTPUT.
qualquan thank you!
Mr. McLogan's Math Channel I probably did not say anything original except that being simple minded I like to think in everyday terms like "input" and "output" with the output written before the input. The term "function" is another term for the output. Also that the terms sin, cosine and tan etc. are mere ratios of the sides of a right triangle. Perhaps a bit of necessary jargon.
At first when i was doing the problem i was lost but after i saw your video it made my life easir. so thank you keep posting the great work.
+Ratna Gamage Happy to hear, will do!
you are very welcome!
Brian McLogan fuck off m8 lmao
10:37 This is SOOOO important!
thank you so much this is honestly so helpful i have a test on this tomorrow and you explained the topic so well, better than any other video ive seen so thank you so much!!!!!!
you are very welcome! so happy to be able to help you out!
you sir are a godsend. Thanks for posting.
Prabh Dhillon : ) just happy to be able to help you out!
Could you please put the episode no. so if I missed out something that I need for the lesson, I could go and check it.If it's okay.I am very pleased with all of your explanations. Thanks.
Hi Job, I do not have my lesson videos organized in sequence on TH-cam since I have so many of them. However I do have Master videos organized in sequence on my channel, paid courses available that go in sequence and my website also has many of my playlists ordered. Hope that helps
omg this literally just saved me!! It is much more simple than it seemed
+Viridiana M happy to save you, keep up the hard work!
You're the best Ever thanks so much
Is there a way to find the inverse cos of 12/13 using the unit circle, or do you have to use a calculator?
Thank you so much!!!! your video really helped me understand this concept and I really appreciate the time and effort you put in making this.
you are very welcome!
sir, how do you solve
arccsc(-2)
WOW!!! I wish you were my teacher.
here for you
thanks, your videos are really very helpful. I've been watching them for a long time and I really understand what you explain. Is impossible don't understand. Great Job
Thx. Very helpful.
Omg this helped so much! You always help me with all my math confusion.
: ) thats what I like to be here for
i didn't know that your channel would have merch, I thought it was going to only have math:)
I really like how you go ahead of yourself, it reflects my personality.he....
Glad it helps
Very helpful video thank you
Ali S. you are very welcome! happy to be able to help!
thank you so much for posting this! however i have a question: what do you do when instead of arcsin or arccos its arcsec or arccsc?
arc(1/cos) and arc(1/sin) they are just reciprocals of one another
Thank you so much that was really helpful!
you are very welcome! happy to help
Thanks for this, greatly appreciated..my precalc professor explains horribly!
+Sara Ni here for you for the rest of the year, let me know how else I can help!
What happens if the angle you find does not fit in the restritctions?
+Tanan Bayarmagnai do you have an example of what you are referring to?
cos B = -0.346
then what will be the inverse cos.
sir, plz do help me i am facing so much problem. while solving
+Urvashi Dave sin^-1(-0.346) = B
Why is the range for cosine pi to 0? I'm confused on that
no the INVERSE of cosine has a restricted range from [0,2pi] Here is a video I made on it th-cam.com/video/xEGZsWgCn-Q/w-d-xo.html
umm, how do i find the video of the very start of inverse of trigonometric functions ?
I do not have my videos in order, as they come from many different classes, check out the playlist at the end for more examples
can you do tan^-1(radical3/3)
+Carlo Sandil look at the unit circle what angle occurs when y/x from the coordinate point of the angle is root3/3
+Mr. McLogan's Math Channel, is pi/6 the right answer?
Arctan (0) = 2pie radians or 0°
Michael Paul depends on the constraint otherwise it will be for both
Thx
The domain has to be restricted for inverse, not range.
correct, the domain of the trig function is restricted giving the range of the inverse function that restriction
Cool bro
cheers!
please can you give me the inverse of f(x)=x+cos(x)
sorry I do not have time to work out individual problems as I have multiple examples
I’m getting confused on the part our teacher gave us, with a cotangent theta negative square root of 3
use the reciprocal function 1/tan(theta)=root(3) therefore tan(theta)=1/root(3) or root(3)/3
Hahah 1:51 so funny!
haha yep happens to me too
Your videos are excellent drills. I never fail to learn something. The repetition is so helpful. @@brianmclogan
And why not just show them the tangent graph for the student who doesn't understand where tan becomes 0 and undefined? That should be far more intuitive than unit circle, imho.
I have a video on that, and teach that as well in my class, this video just doesn't go there