Top answers

All subjects
All levels

What is the Quark structure, Baryon number, and antiparticle of a kaon, K+, which has a strangeness of 1.

Firstly we must figure out what we know about this particle. We have its stangeness which is 1 and we know its charge from the "+" symbol in the question, which is also 1.For the first bit we sh...

LH
Answered by Louis H. Physics tutor
40064 Views

What is the sum of the series 2/3 − 2/9 + 2/27 − ....? (PAT Q1 2013)

This is the sum of a geometric series with an infinite number of terms.First, find the common ratio:(-2/9)/(2/3) = -1/3 , (2/27)/(-2/9) = -1/3Therefore, the common ratio is -1/3-1<(-1/3)<1 therefore...

KM
Answered by Kirill M. PAT tutor
15965 Views

What is the derivative of ln(x)?

First let y=ln(x).

Recall that the exponential function, ex, is defined as the inverse of the logarithmic function, ln(x).

To make x the subject of the formula, u...

BG
Answered by Benjamin G. Maths tutor
9020 Views

Why is it that sin^2(x) + cos^2(x) = 1?

Let's start with the definition of sin(x) and cos(x). We're going to use rather than x here to avoid confusion, but the idea is exactly the same.

Tak...

JT
Answered by John T. Maths tutor
6509 Views

Prove that 0.565656.... can be expressed as 56/99.

1) Let x=0.565656...

2) Thus 100x=56.565656...

3) Subtracting equation 1) from 2) gives:

99x=56

4) Rearrange for x:

x=56/99, Also x...

DC
Answered by Daanyaal C. Maths tutor
4208 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning