Question

find sin 70 degree + sin 10 degree divided by sin 40 degree​

Answer 1

Step-by-step explanation:

sin 70 +cos (90-50)/cos 70+sin (90-50)

sin 70+50/cos 70+cos 50

sin (60+10)+sin(60-10/cos(60+10)+cos(60+10

2sin 60×cos 10/2cos 60×cos10

√3/2/1/2=√3