school of mathematics

Subtracting (ii) from (i), we get ..

i) 1.2 + 2.4 + 3.8 +.... to n terms The n t h term of (1,2,3,....n) is n. The n t h term of (2,4,8,...) is The n t h term of the given series is n2 n Subtracting (ii) from (i), we have ..

Question: Find n. Answer: i) ii..

Question: When n = 5 and r = 2, find the values of Answer: i) ii) ..

Question: Answer: ..

Question: Find n if P(n,4) = 20P(n,2) Answer: ..

Question: Answer: i. The value of C(n, 25) = C(25, 25) = 1 ii..

Question: A boy has 3 library tickets and 8 books of his interest in the library. Of these 8, he does not want to borrow Chemistry Part II, unless Part I is also borrowed. In how many ways can he choose the three books to be borrowed? Answer: There are two ways of selecting 3 books: i)..

Question: Answer: As n represents all positive integers, we have Multiplying the above terms of both sides respectively, we get Multiplying both sides of inequality by n!, we get ..