Hey can you please help me posted picture of question
2 answers:
Order of selection matters in Permutations while it does not matters in combination. So for the given problem we have to you combinations. We are to find the combinations of 26 teachers taken 6 at a time i.e. we are to find 26C6. 26C6 = 230230 So, 23023 to select the 6 teachers for training session.Therefore, the correct answer is option B
I am 87% sure that the answer is 165765600 because if a teacher is taken out each time then it is 26x25x24x23x22x21
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I don't get what your trying to say.
X^2(x+4) x 3x^2(x-1) (X^3+4x^2) x (3x^3 -3x^2) 3x^6 -3x^5+12x^5 -12x^4 3x^6 +9x^5-12x^4 I think that’s how you do it
(2n-1) /(n+9) hope it can help u
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