Question

find the mth term of an ap whose nth term is given by an=5-6n

Answer 1

Hii friend..!!

Here is the answer...!!

Answer : an = 5-6n

if n = 1

a1 = 5-6(1)

a1 = 5-6

a1 = -1

if n= 2

a2 = 5-6(2)

a2 = 5-12

a2 = -7

∴ Sequence = -1 , -7.........

Here, a = -1

d = -7-(-1)

-7 + 1 = -6

an = a+(n-1)d            ( using an.. formula)

an = -1 + ( n - 1 ) -6

an = -1 - 6n + 6

an = 5 - 6n

I HOPE THIS MAY HELP U...!!!