3 years ago

I) For an given A.P. t7 = 4, d = -4 then a = . . .

Mathematics

1 answer:

goblinko [34]3 years ago

5 0

Answer:

a = 28

Step-by-step explanation:

Given : t7= 4 , d = -4

Solution : tn = a + (n - 1) d ......( formula)

t7 = a + (7 - 1) (-4)

4 = a + (6)( - 4)

4 = a - 24

4 + 24 = a

28 = a

therefore, the first term (a) is 28.

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I) For an given A.P. t7 = 4, d = -4 then a = . . .​

I) For an given A.P. t7 = 4, d = -4 then a = . . .