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3 years ago

Write cos (19°) in terms of sine

Mathematics

1 answer:

seraphim [82]3 years ago

8 0

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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3 years ago

Write cos (19°) in terms of sine​

Write cos (19°) in terms of sine