 Well, let's talk about any kind of a part. You'll never see a break there. There are always different shibbles everywhere. Can I say the same for Tan? Different shibbles. Different shibbles. Different shibbles. When you are in a relationship, you are always on the same side. Everything fine. It's always the same side. Are the best relationship in it, Nithi? Yes or no? Are you getting the spot? The term is different. It doesn't make a big value but it doesn't make a bad value. Yes or including that Sign in a word It will be very good. You'll say it doesn't exist there only. So, wherever you discuss its continuity and sensitivity in the neighbourhood of that point the function must exist. Can I say what it must exist? So, these functions will be differentiable everywhere. Now, right now the list of those functions which are differentiable in their don't giving you some of the standard functions that you come across. Now, this is my function, absolutely. So, a log package or any kind of a corner or a customer from 0 to infinity let's say if I am talking about log of x but of course, being the function it will start showing non-differentiabilities. Okay. No. No, it doesn't exist. By the way, please recall minus 1 but x square minus 1. So, as you can see the moment you put x equal to 1 so, we cannot say because 1 and minus 1. So, let's say if we have which of the following function is differentiable in its domain and you see c inverse x just that these two points things go wrong. Okay. So, let's say this side once which we know in general c can go c itself c can go c of course for those which property number 3 is differentiable at differentiability at a no. It will sensitivity at a no. Subtracting of a still be differentiable. It will be differentiable at 0. Sin x plus 2 will also be differentiable at x equal to 0. But what about mod in the function? x equal to a will it be differentiable at x equal to a where as of this function will be differentiable at x equal to 0. x equal to a. So, we can't say we can't say we can't say we can't say So, what do you mean by a fixed x is a differentiable function at x equal to a and you still can't comment it is not but it is I think it is continuous but it is differentiable. My question is if I know a function a 4x is differentiable at x equal to a Kaga is shaking her eyes. She says yes. I want you to try out these on the graph. Take some cases and see whether it is differentiable or not. I will explain it to you. Take examples. I would say take x and mod x itself. Please plot x and mod x on your graph. Take signage and mod signage. What is happening here in this case? This becomes differentiable and x equal to 8. And this is one of the most commonly type of questions being asked in cognitive exams as well. Be careful. These are small things which actually come up from analysis. Books will not like it. They will simply throw questions at you. So it is acting like a sand paper. It is actually making these moves. I am telling all these funny things to you so that you should remember.