Question

if the 3 and 6 term of AP is 7 and 13 then find a and d​

Answer 1

a3=a+(3-1) d=a+2d=7_____1

a6=a+(6-1) d=a+5d=13______2

solving 1 and 2

a+2d=7

a+5d=13

______

-3d=-6

d=6/3

d=2

putting value of d in 1

a+2*2=7

a+4=7

a=7-4

a=3.

Answer 2

Answer:

"a" is 3. and. "d" is 2.

Step-by-step explanation:

while doing such question, write the given terms in general form a+(n-1)d. then equate those equations.... we will get d. substitute d in any of the equation