Find the exact value of each of the remaining trigonometric functions of ?. Rationalize denominators when applicable.cot ? = - ?3/7 , given that ? is in quadrant IVA ) Sin ?= (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)B.) The function is undefined.Select the correct choice below and, if necessary, fill in the answer box to complete your choice.A.) cos ?= ____(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)B. )The function is undefined.