Question

{3, se i = j 2+j , se i #j}

Answer 1

Resposta:

Explicação passo a passo:

Andrew McFarland, ‎Joanna McFarland, ‎James T. Smith · 2014 · ‎Mathematics

(4) In fact, in accordance with (3), when n < l we have = sin n#J – sin(n – 1)#J = 2 sin1/2J # cos(n – 1/2)#J, u n un+1 = sin(n + 1)#J–sinn#J = 2 sin1/2J ...