Question

plz plz plz plz answer my question please ​

Answer 1

Answer:

tn = 149

149 = 1 + 2n - 2

149 = -1 + 2n

149 + 1 = 2n

150 = 2n

n = 150/2

n = 75

Sn = 75 × 75

Sn = 5625

Answer 2

Answer:

n=75

a=1 and d= 2 n=75 sn=?

sn=75/2(2*1 +(75-1)2)

sn=75(1+(75-1)2)

sn=(75 * 149)

sn=11175

I think it must me answer of sn

I think your is wrong