francogenesis46
francogenesis46 francogenesis46
  • 14-02-2020
  • Mathematics
contestada

write cos (19°) in terms of sine​

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GrandNecro
GrandNecro GrandNecro
  • 14-02-2020

Answer:

sin(71°)

Step-by-step explanation:

Sine lags behind cosine by 90°

In other word, cos(∅) = sin(90° - ∅)

cos(19°) = sin(90° - 19°)

= sin(71°)

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