jika Tan x=a maka Sin 2x =...
Matematika
seilanovita
Pertanyaan
jika Tan x=a maka Sin 2x =...
1 Jawaban
-
1. Jawaban eripane05
tan x = a
sinx /cosx = a
sin x = a cosx
=>sin 2x = 2sinx cosx
=> 2(a cosx cosx)
=> 2a cos²x