- #1

SPhy

- 25

- 0

## Homework Statement

Find an expression equivalent for the derivative of the scalar triple product

**a(t)**. (

**b(t)**x

**c(t)**)

## The Attempt at a Solution

Initially I figured since whatever comes out of B X C is being dotted with A, I can use the derivative rules of a dot product:

(

**a(t)'**. (

**b(t)**x

**c(t)**)) + (

**a(t)**. (

**b(t)**x

**c(t)**)' )

However, the solution just gives an expression for the scalar triple product in a 3x3 matrix form, that is,

**a(t)**. (

**b(t)**x

**c(t)**) = [ a1 a2 a3

b1 b2 b3

c1 c2 c3 ]

What gives?