Question

2 cos square 60 degree + 3 sin square 45 degree minus 3 sin square 30 degree + 2 cos square 90 degree​

Answer 1

Answer : 9/4

Step-by-step explanation:

2(cos60)^2 + 3 (sin45)^2 - 3(sin30)^2+2(cos90)^2

=2(√3/2)^2 +3(1/√2)^2-3(1/2)^2+2(0)^2

=2(3/4)+3(1/2)-3(1/4)+2(0)

=(6/4)+(3/2)-(3/4)

=(6/4)+(6/4)-(3/4)

=(6+6-3)/4

=9/4