Решение <span>1) Sinx = - 1 x = - </span>π/2 + 2πk, k ∈ Z<span> 2) cosx = </span>√<span>2\2 x = + - arccos(</span>√2/2) + 2πn, n ∈ Z x = + - π/4<span> + 2πn, n ∈ Z</span><span> 3) tgx = -</span>√<span>3 </span>x = arctg(- √3) + πk, k ∈ Z x = - π/3 + πk, k ∈ Z