Question

In an ap, -5, -3, -1, 1 find 50th term

Answer 1

t1= -5

t2= -3

t3= -1

t4= 1

d= 2 (t2-t1, t3-t4, t4-t3)

a= -5

t50=?

tn= a + (n-1) d

t50= -5+(50-1)2

t50= -5+49×2

t50= -5+98

t50= 93.

The 50th term is 93.

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