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- What is the Integral of -e^ (-x)? - Physics Forums
A later reply discusses the integral of 2x e^ (x^2) and questions whether the integral of f' (x)e^f (x) is always e^f (x), regardless of the nature of f' (x) Participants express that one cannot derive integrals without prior knowledge of their results, highlighting the challenge of integration
- Integration of x^2 (xsinx+cosx)^2 - Physics Forums
Hi everyone, First of all, this isn't really a "homework", I've completed my calculus course and I'm just curious about this problem Homework Statement \\int\\frac{x^{2}}{(xsinx+cosx)^{2}} dx Homework Equations Trigonometric substitutions, integration by parts maybe? The
- Prove that the integral is equal to ##\pi^2 8## • Physics Forums
Prove ∫ 0 2 4 1 x x 2 arcsin (x 1) (x 1 + x 9 16 x) 1 2 x d x = π 2 8 Let The representation integral of is Plugging identity above into with , we obtain Since the integrand is non-negative and continuous over the rectangular domain ( is the root of the numerator), Fubini's Theorem allows us to interchange the order: where and are the closed solutions of the equation Now, computing the
- Integral of differential cross section over solid angle
The discussion revolves around finding the integral of the differential cross section, σ, starting from the expression for dσ dΩ = r²sin²θ and integrating over the solid angle Ω The context is within the subject area of physics, specifically dealing with integrals in the context of scattering theory Exploratory, Mathematical reasoning, Assumption checking Participants discuss the
- Why is the distance calculation multiplied by one half in this physics . . .
The discussion revolves around the reasoning behind the factor of one half in the distance calculation for uniformly accelerated motion in physics Participants explore various mathematical and conceptual explanations related to this factor, including algebraic and calculus-based approaches Some participants explain that the factor of one half arises from considering the average velocity of
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