Question

evaluate : 2tan^2 45° +cos^2 30° - sin^2 60° ​

Answer 1

This is a perfect answer for your question

Answer 2

ANSWER

tan45°=1

cos 30°=√3/2

sin 60° =√3/2

2 tan²45+cos²30-60

=2(tan45)²+(cos30)²-(sin60)²

=2(1)+(√3/2)-(√3/2)²

=2(1)=2