I wish to have the following
.
This is the code to generate the image above.
\begin{align*} \vec{a}\dvec{B} = \vec{a}(\vec{b}\wedge\vec{c}) \\ \vec{a}(\vec{b}\wedge\vec{c}) = (a_x\hx + a_y\hy + a_z\hz)\big[&(b_y c_z - b_z c_y)\hy\hz \\+& (b_z c_x - b_x c_z)\hz\hx \\+& (b_x c_y - b_y c_x)\hx\hy\big]\end{align*}However, how can I align the first equation equal sign with the second one, but maintaining the alignment of the yz, zx and xy terms?
Edit #1:
Below follows what my preamble looks like and some of the definitions used in my document.
\usepackage{tikz}\usepackage{xcolor}\usepackage{titling}\usepackage{amsmath}\usepackage{amssymb}\usepackage{amsfonts}\usepackage{pgfplots}\usepackage{mathtools}\newcommand{\hx}{\hat{x}}\newcommand{\hy}{\hat{y}}\newcommand{\hz}{\hat{z}}\newcommand{\dvec}[1]{\overset{\Rightarrow}{#1}}\newcommand{\tvec}[1]{\overset{\Rrightarrow}{#1}}As for the errors my document is currently producing: there are no errors. What I am mainly seeking is a way to align the first equation with the second one without losing the alignment done inside the square brackets part.