Question

2sin п/2-tgп/ 4


2sin п/3 -cos п/2
вычислить

Answer 1

2sinπ/2 - tgπ/ 4 = 2 · 1 - 1 = 2 - 1 = 1
2sinπ/3 - cosπ/2 = 2 · √3/2 - 0 = √3 - 0 = √3