# If sin(thetha)<0, find the value of cos(thetha) when cot(thetha)=3/2 (Give an exact answer. Use symbolic notation and fractions where needed.)   Please give a step by step explanation.

Question

If sin(thetha)<0, find the value of cos(thetha) when cot(thetha)=3/2

(Give an exact answer. Use symbolic notation and fractions where needed.)

Please give a step by step explanation.