Easy -2.0 This is a 1-mark multiple choice question requiring only basic recall of function properties: recognizing that sec x = 1/cos x = 0 has no solution since cos x can never equal infinity. No calculation or problem-solving is needed, making it significantly easier than average A-level questions.
Which one of the following equations has no real solutions?
Tick (\(\checkmark\)) one box.
\(\cot x = 0\)
\(\ln x = 0\)
\(|x + 1| = 0\)
\(\sec x = 0\)
[1 mark]
Which one of the following equations has no real solutions?
Tick ($\checkmark$) one box.
$\cot x = 0$
$\ln x = 0$
$|x + 1| = 0$
$\sec x = 0$
[1 mark]
\hfill \mbox{\textit{AQA Paper 2 2020 Q2 [1]}}