यदि d = - 4 n = 7 an = 4 a का मान ज्ञात करो
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Answer:
an=a+(n-1) ×d
a=an×(n-1) ×d
a=4×(7-1) ×(-4)
last line you can do
Answered by
1
an =a+(n-1) d
an =4, n=7, d=-4
then,
4= a + (7-1)- 4
-a=-24-4
-a=-28
a=28
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