What is the exact value of tan(195°)?

StartFraction StartRoot 3 EndRoot + 1 Over 1 minus StartRoot 3 EndRoot EndFraction
StartFraction StartRoot 3 EndRoot minus 3 Over 3 + StartRoot 3 EndRoot EndFraction
StartFraction StartRoot 3 EndRoot minus 1 Over 1 + StartRoot 3 EndRoot EndFraction
StartFraction StartRoot 3 EndRoot + 3 Over 3 minus StartRoot 3 EndRoot EndFraction

What is the exact value of tan195 StartFraction StartRoot 3 EndRoot 1 Over 1 minus StartRoot 3 EndRoot EndFraction StartFraction StartRoot 3 EndRoot minus 3 Ove class=