Is there an easy way in order to memorize the formula for this?
Md Ariful Islam
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,
এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
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পিজিটি(মেডিসিন)
Yes. Think of it like this: subtract the total amount by the total items. For example 7 and 4. Then, find 7! to 4, so 7x6x5 and then find the answer, and you’ll get the permutations.
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