1) the function f(x)=log2(log3(log2(log3(log2(x)))) has the interval x> [...???...] as its maximum domain on real numbers.
2) the total of subtractions that results in 11111 remaining after the four-digit number have been subtracted from five-digit number and the digit 1 through 9 have all been used is [....???....]
ช่วยตอบคณิตข้อสอบทุนญี่ปุ่นนี้หน่อยครับ
2) the total of subtractions that results in 11111 remaining after the four-digit number have been subtracted from five-digit number and the digit 1 through 9 have all been used is [....???....]