Решите неравенство : 1) сos (x/2-pi/4) 0 2)tg(-2x) - вопрос №12402205599723 от xdxdxdxdxdxdx 13.07.2022 04:03

Question

Алгебра: Решите неравенство : 1) сos (x/2-pi/4) 0 2)tg(-2x) 0

xdxdxdxdxdxdx · Answer

1-π/2+2πn x/2-π/4 π/2+2πn,n∈x-π/4+2πn x/2 3π/4+2πn,n∈z-π/2+4πn x 3π/2+4πn,n∈zx∈(-π/2+4πn;3π/2+4πn,n∈z)2πn -2x π/2+πn,n∈z-π/4+πn x πn,n∈zx∈(-π/4+πn;πn,n∈z)...

Решите неравенство : 1) сos (x/2-pi/4)> 0 2)tg(-2x)> 0