g9rAngelshell g9rAngelshell

05-05-2016
Mathematics

Answered

sin43×cos47+cos47×sin43

Verified Answer :

20-05-2016

sin(α + β) = sin(α)cos(β) + cos(α)sin(β)

sin43×cos47+cos47×sin43 = sin(43 + 47)

= sin(90) = 1

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