Question

evaluate 2 cos square 60 degree + 35 sin square 45 degree minus 3 sin square 30 degree + 2 cos square 90 degree​

Answer 1

Answer:

69/4

Step-by-step explanation:

2 cos square 60 degree = 2 * (1/2) ^2

=1/2

35 sin square 45 degree = 35 * (1/root(2)) ^2

= 35/2

3 sin square 30 degree = 3 * (1/2) ^ 2

= 3/4

2 cos square 90 degree = 2 * (0) ^ 2

= 0

##  2 cos square 60 degree + 35 sin square 45 degree minus 3 sin square 30 degree + 2 cos square 90 degree​ = 1/2 + 35/2 - 3/4 + 0 = 69/4 Ans