123
Evaluate: $\sin^2 30^\circ - \cos^2 45^\circ + \cot^2 60^\circ$
Show SolutionHide Solution↓
Ans.
(A) Given expression = $(\frac{1}{2})^2 - (\frac{1}{\sqrt{2}})^2 + (\frac{1}{\sqrt{3}})^2$ (1 Mark)
$= \frac{1}{12}$ (1 Mark)
(A) Given expression = $(\frac{1}{2})^2 - (\frac{1}{\sqrt{2}})^2 + (\frac{1}{\sqrt{3}})^2$ (1 Mark)
$= \frac{1}{12}$ (1 Mark)