Questions asked by Harlan G.
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How many 3 digit counting numbers less than 800 have digits that are all even?
Help solving the following equation?
#log_7(x-2) + log_7(x+4)=2log_7 4#
Please also check for extraneous solutions.
Can you help evaluate this equation?
#sin^2 (-420°)+ cot (270°) +csc(225°)#
Can anyone evaluate #tan ((5pi)/6) - sin ((7pi)/4) + cot((4pi)/3)# ?