Question

tolong dibantu+ dijawab dengan caranya​

Answer 1

Jawaban :

<B = 180° + 37°

sin B = sin(180+37°)

= -sin 37°

sin B = -3/5

sec B = 1/cosB

sec B = sec(180°+37°)

= -sec 37°

= -5/4

Nilai 2 sin sec B

= 2 . -3/5 . -5/4

= 6/4 = (6/2) / (4/2) = 3/2 ( D.)

[[ SN ]]