Question

If nth term of an is 5(n-2). find its first term and common difference

Answer 1

Hope it will be helpful.                          nth term=a+(n-1)d_____________(1) Given:nth term=5(n-2)=5n-10 There is 5n and therefore  the common difference will also be 5           Nth term= -15+5n+5                                                 = -15+(n-1)5                             Now comparing with equation (1) We get.    a=-15 and d=5 Please mark me brainliest if you like it