Question

The value of sec² 60° – tan² 60° is __________.

Answer 1

$$\begin{gathered} {\sec }^{2}60°-{\tan }^{2}60° \\ ={\left(2\right)}^2-{\left(\sqrt{3}\right)}^2\left(\sec 60°=2\mathrm{and}\tan 60°=\sqrt{3}\right) \\ =4-3 \\ =1 \end{gathered}$$

The value of sec² 60° – tan² 60° is _____1_____.