In an ap first two terms are -3 and 4 then 21 term is?
Answers
Answered by
0
Answer
77
Step-by-step explanation:
a= -3, d= 4- (-3)=7
formula a21=a+(n-1)d
a21= -3+(21-1)7
= -3+20*7
= -3+140
a21 =137
Answered by
3
Answer with step by step explainition:
a=-3 a2=4
Therefore, d=4-(-3)=4+3=7
n=21
an=a+(n-1)d
an=-3+(20)7
an=-3+140
an=137 Answer
Therefore the 21 st term of this AP is 137.
Similar questions