write first term of ap is -4 and sixth term of it is 6 find fourth term of ap
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Answer:
a = -4
a6 = 6
a + 5d = 6
-4 + 5d = 6
5d = 6+4
d = 10/ 5 = 2
a4 = a + 3d
= -4 + 3 ×2
= -4 + 6
a4 = 2
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