Reciprocal Definition and 157 Threads

What is an equation of a relation that appears to be its own reciprocal? :rolleyes:

If two resistors with resistances R1 and R2 are connected in parallel, then the total resistance Rt, measured in ohms, is: \frac{1}{R_t} = \frac{1}{R_1} + \frac{1}{R_2} If R1 and R2 are increasing at rates: \frac{d \Omega_1}{dt} = 0.3 \; \; \frac{d \Omega_2}{dt} = 0.2 \; \; R_1 = 80 \...

can any1 explain why this iteration: Xn+1 = Xn(2 - NXn) can be used to find the reciprocal of N. I don't ned proof or to show that it does but i would like to know if sum1 can break it down and explain how it does it.

Compute the following: \sum_{n=1}^{+\infty} \frac{1}{n^{2}} =...?? \sum_{n=1}^{+\infty} \frac{1}{n^{4}} =...?? .LINKS TO WEBPAGES WITH SOLUTIONS ARE NOT ALLOWED! :-p Daniel.

The terms of this series are reciprocals of positive integers whose only prime factors are 2s and 3s: 1+1/2+1/3+1/4+1/6+1/8+1/9+1/12+... Show that this series converges and find its sum. this is my first time writing here. i hope someone can help me with this question.

Er well I've been away from math for a LONG time until I recently began reading into calculus and I have a question. I always see reciprocal and inverse throughout the text. What is the difference between the two? I always thought reciprocal was the number (in a fraction form) flipped so...

A triangle in Euclidean space can be described as having a hypotenuse of one, and legs of Lorentz parameters \beta and \gamma. What spatial curvature underlies a triangle with hypotenuse one, and legs 1/ \beta and 1/ \gamma?