no of 4 DISTINCT Letter words from MATHEMATICS
USING MULTINOMIAL THEOREM I GET
coefficent of x^4 in ((1+x)^5) *((1+x+x^2)^3)
can yu help me find the coefficient of x^4 in this
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If I read the problem correctly, you are complicating it. Number of 4-letter words with distinct letters from MATHEMATICS.
There are eight distinct letters:.
We select and permute 4 of them.
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