Помогите!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Question

Помогите!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Answer 1

1 / (2v5-4) - 1/ (2v5+4)= ( 2v5+4 - (2v5-4) ) / (2v5-4)(2v5+4) = 8 /( (2v5)^2 - 16 ) = 8/4=2

Comments

а №1 где?