Write the set A = { x/x E N ; -3 < x <_ 7 } in ro ster form and also find n(A)
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Step-by-step explanation:
(11) B = ²x²x1² + 77 - 8 = 0, 7ER ZER?
8 =
x² + 7×-8 = 0
20
-7 ± √(7) ²-4X1X-8
2X1
2/6 = = 7 ± √√√49 +32
2
= -7 ± 81
2
-7+9
2
-7+9
2
2/1
1
2
B
=
B
8
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