How many ways can a password be created with 3 lowercase letters and 1 numeric digit, if letters can be used more than once?
1 answer:
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Area = width * length
if width = 3/8 length ⇒ length = 8/3 width
area = width * 8/3 width = 8/3 width² = 6
width² =
width =
if width = 3/8 length ⇒ length = 8/3 width
area = width * 8/3 width = 8/3 width² = 6
width² =
width =