sec 150°×cos300°×tan225°
Matematika
cindee
Pertanyaan
sec 150°×cos300°×tan225°
1 Jawaban
-
1. Jawaban divaaa24
sec(180-30)xcos(270+30)xtan(180+45)
= -sec30 x sin30 x tan45
= -2/√3 x 1/2 x 1
= -1/√3