Given sine (30 degrees) = one-half and cosine (30 degrees) = startfraction startroot 3 endroot over 2 endfraction, use trigonometric identities to find the the value of cot(30°). one-half startfraction startroot 3 endroot over 3 endfraction startfraction startroot 3 endroot over 2 endfraction startroot 3 endroot