if an=-15 n=20 and d=-5 then find a
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Answered by
9
an=2a+(n-1)d
-15=2a+(20-1)-5
-15=2a+(19)-5
-15=2a-95
-15+95=2a
110=2a
a=55
-15=2a+(20-1)-5
-15=2a+(19)-5
-15=2a-95
-15+95=2a
110=2a
a=55
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Answered by
3
HEY MATE......
Given:
an = -15
n = 20
d = -5
an = a+(n-1)d
=> -15 = a + (19x-5)
=> a = 95 - 15 =80
HOPE IT HELPS.......✌
PLEASE FOLLOW ME.......✌
BY SHIVAM SHAURYA
Given:
an = -15
n = 20
d = -5
an = a+(n-1)d
=> -15 = a + (19x-5)
=> a = 95 - 15 =80
HOPE IT HELPS.......✌
PLEASE FOLLOW ME.......✌
BY SHIVAM SHAURYA
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