Recent content by racer

Homework Statement Use calculations to determine what could happen to the 215mm wide glass window if it is tightly fitted into the aluminum frame. The temperature in the mechanical wrokshop was 20 C The Maximum temperature in Bahrain = 55 C THe Minimum temperature in Bahrain = 5 C...

That was amazing, I'll see if this applies to other functions. Is there a realistic proof or example that contains releastic things? It is logical, I would like to see a realistic example and I know that it is hard to find a realistic example that proves derivatives but there has to be an...

Hello guys I've been recently thinking about derivative and it's applications. Let's say Y=3x When X = 1, Y=3 wHEN X = 2, Y = 6 When X = 3, Y = 9 Dy/Dx is the rate of change in Y with respect X, it is 6-3/2-1 =3/1 = 3 and the derivative is 3. Let's Y = (X)^2 When X = 1, Y=1...

do you mean that 2h - 128/(h-8)^3 - 16/(h-8)^2? if you meant that, then the (h-8)^3 comes from multiplying (h-8) times ( h-8)^2, what you do is you add the exponents. It is like x times x, you add the exponents if the bases are the same, it becomes x^2, 5 times 5 is 5^2.

Integrals can have many forms of answers and this one is one of them but what they share is that they have common output.

x = 3siny dx = 3cosy dy (9-9siny^2)^1/2. 3cosy dy/9siny^2 (9-9siny^2) = 9cosy^2 because cosy^2 + sin ^2 = 1, multiply both sides by 9. it becomes 3cosy . 3 cos y dy / 9 siny^2 9cosy^2 dy / 9 siny^2 it becomes cosy^2 dy / sin^2 which is coty^2 dy but 1 + coty^2 =...

Hello there Find the lim of this function using Algebra alone and without using Newton Method or L'Hapital Rule, only Algebraic manipulation is allowed. I have previously posted this lim but no one did solve it algebriaclly, I solved it using Algebra and uploaded the solution. Lim...

I don't know anything about Sequence limits.

Find the Lim of 0/X as X approaches zero. 0/X = X-X/X = X/X - X/X = 1-1 = 0

Yeah it is zero but I want the lim without L'Hopital rule, I want the solution using Algebra.

:smile: I am sorry.

Hello there I am not sure but I have few ideas and they might help. [1-secH(X)]^2 becomes -tanH(X) [cosX]^2 + [SinX]^2 = 1 Dvide by [cosX]^2 and you will have 1+[TanX]^2 = 1 over CosX^2 which [SecX]^2 1- [SecX]^2 = -[tanX]^2 The root of the first one is -[tanX] if I am not...

Hey there Find the lim of F(X) as X approaches zero F(X) = 0/X ( Zero over X ) Thanks.

I meant by more a better textbook with the same level, something introductory. This book is great and looks interesting. Thanks guys for your help.

Hey there I do study a textbook at School called Plane Geometry, it is about 3d dimensional figures, it starts with explaining Planes, points and lines, then It starts with theories, then I have to prove something like a line perpendicular to a plane and things like that. I googled Plane...