Question

sin 3a + cos2a, якшио α = 30° ;​

Answer 1

Ответ:

cos60-sin60+sin90= 1/2 + \sqrt{3} /2

3

/2 +1 = 2,37

Answer 2

Ответ:

cos60-sin60+sin90= 1/2 + +1 = 2,37