If `2(2n+5)=3\ (3n-10),` then `n=` 5 (b) 3 7 (d) 8

If (2n+5)=3(3n-10) ,then n=?

If 2(2n+5)=3\ (3n-10), then n= (a)5 (b) 3 (c)7 (d) 8

If 2(2n+5)=3(3n-10), then n=5 (b) 37(d)8

If in an A.P., S_(2n)=3.S_(n) then S_(3n) : S _(n) = (a)5 (b) 6 (c)7 (d)8

Let n be a positive integer such that sin (pi/(2n))+cos (pi/(2n))= sqrt(n)/2 then (A) n=6 (B) n=1,2,3,….8 (C) n=5 (D) none of these

Let n be a positive integer such that sin (pi/(2n))+cos (pi/(2n))= sqrt(n)/2 then (A) n=6 (B) n=1,2,3,….8 (C) n=5 (D) none of these

If .^(n)P_(3)+.^(n)C_(n-2)=14n , the value of n is (a) 5 (b) 6 (c) 8 (d) 10

lim_ (n rarr oo) (2.5 ^ (n + 1) -3.7 ^ (n + 1)) / (2.5 ^ (n) + 3.7 ^ (n)) =

If n(A)=2 , P(A)=1/5 , Then n(S)=? a) 10 b) 5/2 c) 2/5 d) 1/3

5 n+2 −6 xx 5 n+113 xx 5 n − 2 5 n+1 is equal to (a) 5 3 (b) − 5 3 (c) 3 5 (d) − 3 5