Question

14. Check whether 5x +23y+14=0 and 23x-5y+9 are parallel or perpendicular.Find the terms a8 and a15 whose nth term is (n^(2 )-1)/(n+3), n is even, n∈N an= n^2/(2n+1) , n is odd, n ∈N

Answer 1

Answer:

sorry I don't know the answer

Step-by-step explanation:

sorry I don't know the answer