Question

For the AP : 1/4, −1/4, −3/4, 5/4 ........, write the first term a and the common difference d. And find the 7th term

Answer 1

AP: 1/4,-1/4,-3/4,5/4...Ans:Here a=1/4, d= -1/4-1/4=-1/2 Therefore a 7th term= a+(n-1)d =1/4+(7-1)*-1/2 = -11/4(ans)