Question

Which of the following relation is correct?
1) 2 I.P. - E.A.-E.N. = 0
2) 2 I.P.-E.N. + E.A. = 0
3) 2 E.N. - I.P.-E.A. = 0
4) E.N.-IP.- E.A. = 0
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Answer 1

Answer:

4 is the correct answer