PLEASE HELP ME IM STUCK ON THIS EXTRA POINTS If sine theta equals negative square root of three over two and pi less than theta less than three times pi over two, what are the values of cos Θ and tan Θ?

cosine theta equals one half, tangent theta equals negative square root of three
cosine theta equals negative one half, tangent theta equals square root of three
cosine theta equals negative one half, tangent theta equals negative square root of three
cosine theta equals one half, tangent theta equals square root of three