hello geniues....♥
plz solve these 2 sums......
step by step explanation....
note:- 12 points
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Hey here is the answer to yhe 1st part
2nd part also
a+ 13 d = 2(a+7d)
a + 13d = 2a + 14d
-a -d = 0
a+ d = 0 = a2 ---- --------> 1
a + 5d = -8 -----> 2
2-1
a + 5d = -8
a +. d = 0
------------------
a = 2
D = -2
a 20 = 2+ 19*-2
= -36
S20 = 10(2+(-36))
= -340
Hope it's helpful.
All the best.
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aastha4865:
but i choosen her.....so now....i can't cange the brainlist.....
and u copied the second one....by other brainly answer
No
Thats not true
I solved it
But i didnt have the time s
So i copied it
But anyway ur wish
:[
hm
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the second question is not clear
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