Question

помогите пожалуйста 3sinx-cosx=0

Answer 1

3sinx - cosx = 0

3sinxcosx - cosxcosx = 0 sinxcosx = tgx 3tgx - 1 = 0

3tgx = 1 tgx = 13 x = arctg 13 + пи * n

Answer 2

3sinx-cosx=0    cosx

3tgx - 1 =0

3tgx=1

tgx=13

x=arctg 13 + Пn,n∈z