if an AP, if the common difference (d) =-4, and the seventh term (a7) is 4, then find the first term
Answers
Answered by
53
Hey user here is your answer....
---->To find. - a
.
◆An=a+(n-1)d
.
◆a7=4
◆a+(7-1)d=4
◆a+6d=4
Put value of d here
◆a+6(-4)=4
◆a-24=4
◆a=4+24
◆a=28
Thanks☺️
#Rohan
---->To find. - a
.
◆An=a+(n-1)d
.
◆a7=4
◆a+(7-1)d=4
◆a+6d=4
Put value of d here
◆a+6(-4)=4
◆a-24=4
◆a=4+24
◆a=28
Thanks☺️
#Rohan
Anonymous:
Thanks for marking ad brainiest
its most wlcm
Thanks
why?
Answered by
17
a+(n-1)d=4.
a+6d=4
a+6(-4)=4
a=4+24
a=28.
a+6d=4
a+6(-4)=4
a=4+24
a=28.
thnks
now i feel well
bcoz now i conform my ans is ryt
however we r gng to write another exam
ao forget about last exam
yah
my yestetday exam was gorgeous
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