Q37 of 58 Page 12

If X = {8n – 7n – 1 | n ∈ N} and Y = {49n – 49 | n ∈ N}. Then

Given: X = {8n – 7n – 1 | n ∈ N} and Y = {49n – 49 | n ∈ N}


X = {8n – 7n – 1 | n ∈ N}


On putting n = 1, 2, 3….


X = {0, 49, 490………}


Y = {49n – 49 | n ∈ N}


On putting n = 1, 2, 3, 4,….,11,…


Y = {0, 49, 98, 147,………, 490………}


Clearly, X ⊂ Y

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