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Sin43×cos47+cos47×sin43

Sin43×cos47+cos47×sin43
asked 164k views
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Sin43×cos47+cos47×sin43

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User Fuseblown
by
8.1k points

1 Answer

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

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

= sin(90) = 1
answered
User Gillyspy
by
8.6k points
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