Respuesta:
K = ctg(x)
Respuesta C
Explicación paso a paso:
K = (sen (30° + x) + sen (30° – x)) / sen(x)
K = (sen(30º)cos(x) + sen(x)cos(30º) + sen(30º)cos(x) - sen(x)cos(30º)) / sen(x)
K = 2sen(30º)cos(x)/sen(x)
K = 2sen(30º)ctg(x)
K = 2(1/2)ctg(x)
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Respuesta:
K = ctg(x)
Respuesta C
Explicación paso a paso:
K = (sen (30° + x) + sen (30° – x)) / sen(x)
K = (sen(30º)cos(x) + sen(x)cos(30º) + sen(30º)cos(x) - sen(x)cos(30º)) / sen(x)
K = 2sen(30º)cos(x)/sen(x)
K = 2sen(30º)ctg(x)
K = 2(1/2)ctg(x)
K = ctg(x)