Question

find the 21st term of the A.P;-4*1/2,-3,-1*1/2,...​

Answer 1

Answer:

find the 21st term of the A.P;-4*1/2,-3,-1*1/2,...

Step-by-step explanation:

4×1/2,-3,-1×1/2a= -4×1/2 d=-6+4/2 d=-121th term = ? =21th term=a+ 20d =-4/2-20/1 =-4…