1.An=2n-1 2.An=12-3n

1.an=2n-1 2.an=12-3n

 

Answer:

Find The 5th,6th,7th,8th and 9th term

Step-by-step explanation:

1.

an=2n-1

a5=2(5)-1

a5=9

a6=2(6)-1

a6=11

a7=2(7)-1

a7=13

a8=2(8)-1

a8=15

a9=2(9)-1

a9=17

2.

an=12-3n

a5=12-3(5)

a5=-3

a6=12-3(6)

a6=-6

a7=12-3(7)

a7=-9

a8=12-3(8)

a8=-12

a9=12-3(9)

a9=-15