Відео

I found it interesting that you are not allowed to combine sine with f(x+h) and that you needed to expand the problem. RK

I thought it was interesting that every function that starts with a c the derivative will be a negative. That tip at the end really made me wonder why that’s so . Rosie period 6

DD Pd7 - i found it interesting that through the explanation identifying and evaluating sin x over x and cos x -1 over x was simple.

DD Pd.7 - I thought it was interesting how you used the commutative property in order to make explaining the factoring out easier visually.

I liked how clear the directions were. Not confusing at all and really easy to understand . As well as how you wrote everything down and the color coded + the highlighting makes it easier to see what your focusing on.- MZ period 8

Loved the energy in your voice. And the little recap at the beginning of the video-MZ period 8

I found it interesting how we can apply prior knowledge/lessons to easily solve more complicated problems such as the one demonstrated in this video. RC (Period 6)

Beautiful explanation, you've done it again. -TM period 1

Very clear explanation I was able to understand everything. - TM period 1

I found it interesting how this combines the lessons we've done so far and how you cannot distribute sin(x+h). RC (Period 6)

I'm impressed by how the video uses clever techniques like acronyms and alliteration to make concepts stick. It's great to see old lessons coming together in a new way. - N.N - Pd.8

I really appreciate how the video breaks down the process of finding the derivative using sine and cosine. It's a great way to connect concepts and make them easier to remember. - N.N. Pd.8

I liked how you gave us the SSS and CC to help us remind the formula, it may be confusing at times, but the use of acronyms really facilitates it. I'm also excited for that last sneak peek to the nexts derivatives that we are going to study. - FJHR, Period 8

Its amazing how many tricks there are to help you learn and remember ways to solve problems (Q.B, P8)

i found it very interesting that almost all the info we needed for this were thjngs we already learned and simply combined to form this lesson. D.O. pd 8

I found it interesting how this combines that previous topics we've worked on like trig and derivatives to form new problems.(Q.B P8)

i found it very helpful to explain the difference between the x and h and how important it is to not confuse them. D.O. pd 8

I now understand how crucial it is to understand past lessons because they. are all incorporated into a whole new lesson on its own. its explained very well, and I understand it a lot more better than I did before. (The trick at the end is also extremely helpful) - P1 AZ

I found it helpful to know that sin signs stays the same and cos signs change- AC pd. 7

I understand derivatives much more when explained sine and cosh. its a really helpful video, and explained very well. - P1 AZ

I found this video more helpful to understand why you can’t distribute the angels and what you should do instead of distributing the angel because it is ilegal- AC pd 7

It's compelling to see how math continues to build on itself, connecting what we've already learned from past units to newer lessons such as this one. - Dave Glennon Pd. 1

I liked how the rearrangement and use of known properties that we have also proved before allows us to manipulate the expression to find the result. - FJHR, Period 8

sss- sign stays same, c,c- sign changes... a very good tip to remember. The derivative of six is cosine x and the derivative cosine x is negative sign x. The secret at the end is very helpful.- M.R period 1

super helpful video doc! 💪the simplicity in your lesson and explanation made it very easy to follow - DG period 1

The reminder that distribution is not allowed for the trig to the angle was helpful. The alliteration is also very helpful in order to remember the equations for finding the cos/sin for multiple angles in parenthesis . M.S Period 8.

2:27 You know I saw that! Great video - mo

I found it interesting that you could combine the limit functions and the trig equations to prove the trig derivatives. M.S Period 8

I liked how you explained the difference between sin(x+h) and cos(x+h)- R.M period 8

I liked how you explained on what you can and cannot do when distributing sin(x+h). R.M period 8

What I found interesting about this video is how we use the limit rules to help find the derivative

the explanation of how to find cos(x+h) is very easy to understand - A.M. pd8

easy video to understand and easy tip at the end to remember that the trig function that starts with a c the derivative will be negative- period 1

Something I found interesting is every trig function that starts with a c their derivative is negative

I found it interesting how every trig function that starts with a c will have a negative derivative VP (period 8)

easy to understand and found it interesting how the derivative of sinx is cosx -period 1

I enjoyed the recap in the beginning to jog our brains, I also liked how you were right and in the end we are just building on our old knowledge and adding more and taking from old lessons. I feel like I understand derivatives better now and that I could do well tomorrow in class. It was helpful. - W.W. Period 8

I found it interesting how this combines the lessons we've done so far and how you cannot distribute sin(x+h). VP (Period 8)

I found the video intriguing. I thought the way you changed colors to represent things was fun and the big “it all comes together” moment was nice to come to at the end. I feel like I’m prepared to start delving into this topic now. I also just enjoyed the fact that you said this was the end of limits in class today and then turned around and sent us a video with more limits. A very helpful video. - W.W. Period 8

The way you explained if sine or cosine is negative or positive helps me solve these types of problems and why they make sense. "Sine stays same" and "Cosine Changes" A.B pd 7

This video helps me understand how sine and cosine connect to finding the definition of a derivative. The way you explained it helps me remember these rules for future exams. A.B. pd 7

I find it interesting that you cannot distribute sin in sin(x+h). -C.F (Pd6)

I found the the tip about functions starting with a C interesting because all of them are negative -C.F (Pd.6)

i found the derivatives of sin interesting as it’s (x+h) results in sin and cos - s.t (p8)

I found the recall sections of both videos to be extremely helpful as they help us to remember the special limits from the limit unit and how they apply to calculus derivatives. -MR pd. 6

I found the tip at the end of the video interesting, how every trig function that starts with a c that it’s derivative would be negative.-(Z.J Pd.6)

I'm extremely astonished by your decision to just simply plug in f(x)= cos(x+h) aka (cos x cos h- sin x sin) h into the definition of a derivative then separated them into two fractions which leads to the result of the following rules you recalled resulting to the derivative of cos x to be -sinx. - E.M. (Period 7)

I found it interesting the way we’re supposed to distribute Sin(x+h) and we can’t do in as Sinx and Sinh because thats illegal. (Z.J pd.6)

I find it interesting how you can’t distribute and have to do the process of sin, cos, cos, sin. You can see parts of our last units in this one as well. A.J per 7

I found it interesting that the process still follows the same concept as our last unit and finding the derivative of "sin x" just that instead of sin, cos, cos, sin, it's cos, cos, sin, sin. (Y.L. Period 1)