Let a → = i + j, b → = 3i + 4k and c → = i + d →, where c → is parallel to a → and d → is perpendicular to a →.

If a → × i ≠ 0, j ≠ λk, then which of the following equations is/are correct ?

1.  y – x = 0

2. 5x – 3z = 0

Select the correct answer using the code given below :

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