대답: # x = npi + (2pi) / 3 # 어디에 ZZ # #n 설명: # rarrtan ^ 2x + 2sqrt3tanx + 3 = 0 # # rarr (tanx) ^ 2 + 2 * tanx * sqrt3 + (sqrt3) ^ 2 = 0 # #rarr (tanx + sqrt3) ^ 2 = 0 # # rarrtanx = -sqrt3 = tan ((2pi) / 3) # # rarrx = npi + (2pi) / 3 # 어디에 ZZ # #n