zemmie16 zemmie16
  • 29-04-2021
  • Mathematics
contestada

If r and t are the measures of two acute angles so that r + t = 90° , then cos r equals:
(1) sin(90° - t)

(2) sin(t + 90°)

(3) sin(t - 90°)

(4) sin t

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chakey15262007 chakey15262007
  • 29-04-2021
The answer is 3 okomokko
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