Question

4 (sin4 60° + cos4 30°) - 3 (tan2 60° - tan2 45°) + 5cos2 45°​

Answer 1

Step-by-step explanation:

4((9/16)+(9/16))-3(3-1)+5(1/2)

=4(9/8)-6+(5/2)

=(9/2)-6+(5/2)

=(9/2)+(5/2)-6

=(14/2)-6

=7-6=1