решить уравнение: 6 /tg^2x + 5/ tgx -1=0
1/tgx = ctgx
x = -\pi/4 + k_{1}\pi" alt="ctgx = -1 => x = -\pi/4 + k_{1}\pi" align="absmiddle" class="latex-formula">
x = arcctg(1/6) + k_{2}\pi" alt=" ctgx = 1/6 => x = arcctg(1/6) + k_{2}\pi" align="absmiddle" class="latex-formula">
x = -\pi/4 + k_{1}\pi" alt="ctgx = -1 => x = -\pi/4 + k_{1}\pi" align="absmiddle" class="latex-formula">
x = arcctg(1/6) + k_{2}\pi" alt=" ctgx = 1/6 => x = arcctg(1/6) + k_{2}\pi" align="absmiddle" class="latex-formula">