Question

find first four terms of A.P if
a = 4 (first term) and common difference "d= -1"..
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Answer 1

Answer:

Step-by-step explanation:

a=4

d=-1

tn=a+(n-1)d

second term=?

t2=4+(2-1)-1

t2=4+1(-1)

t2=4-1

t2=3

third term=?

t3=4+(3-1)-1

t3=4-2

t3=2

fourth term=?

t4=4+(4-1)-1

t4=4-3

T4=1

OR

first four terms of A.P are a,a+d,a+2d,a+3d

4,3,2,1=ans