59-66 Change of Base Formula Use the Change of Base Formula and a calculator to evaluate the logarithm, rounded to six decimal places. Use either natural or common logarithms. 59. log, 5 60. logs 2 61. log3 16 62. log692 63. log, 2.61 64. log6 532 65. log4 125 66. log 12 2.5 S 67. Change of Base Formula Use the Change of Base Formu to show that In x log3x= = In 3 Then use this fact to draw the graph of the function f(x) = log3 x.