Question

√2 cos 45° - tan^2 60°
evaluate without using trigonometric tables​

Answer 1

Answer:

$\sqrt{2} \cos(45) - { \tan }^{2} 60 \\ = \sqrt{2} \times \frac{1}{ \sqrt{2} } - { (\sqrt{3} )}^{2} \\ = 1 - 3 \\ = - 2 \: \: ans.$