Упростить sin2x/8⋅sinx

Question

Упростить sin2x/8⋅sinx

Answer 1

sin(2x) / ( 8 sin(x) ) = 2 * sin(x) * cos(x) / (8 * sin(x) ) = cos(x) / 4

Comments

Ох е

Answer 2

Sinx-sinx

2:2=1

8:2=4

1/4