2 trig questions

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Mathematics

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Determine a general formula (or formulas) for the solutions to the equation. Then determine the specific solutions (if any) in the interval (0.21). 2 cos -1=0 Describe in the most concise way possible the general solution to the given equation, where k is any integer. Select the correct choice below and fill in all the answer boxes within your choice. (Simplify your answers. Type any angle measures in radians. Use the smallest non-negative angle possible when describing the general form of each angle. Use ascending order, entering the expression based on the smallest angle first. Use integers or fractions for any numbers in the expression.) ОА. o= Ов. AE - k or = Oc A < or + k or 6 = + + k or = 1+ k or 8 = D.Ok OD AE k or o = Determine a general formula (or formulas) for the solution to the equation. Then determine the specific solutions (if any) in the interval [0.21). sin - cos 28 = 1 + cos e Describe in the most concise way possible the general solution to the given equation, where k is any integer. Select the correct choice below and fill in all the answer boxes within your choice. (Simplify your answers. Type any angle measures in radians. Use the smallest non-negative angle possible when describing the general form of each angle. Use ascending order, entering the expression based on the smallest angle first. Use integers or fractions for any numbers in the expression.) OA =+k OB. = k or = OC. 6= k or = or = +k Tor = + k OD 0= k or = or A
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