Question 1024466

Find the value of the unique real number x between 0 and 2pi that satisfies the given conditions cos(theta)=-&#8730;2/2 and tan(theta)<0
<pre>{{{theta}}} is in the {{{2^(nd)}}} quadrant where cos and tan are < 0 (negative), so {{{highlight_green(theta = (3 * pi)/4)}}}