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  • 21-01-2017
  • Mathematics
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1.) What is the relationship between sine & cosine?
a) sinθ=cos(90−θ)
b) sinθ=cos(180−θ)
c) sin90=cos(90−θ)
d) sinθ=cos(30−θ)

Respuesta :

yashddsy26
yashddsy26 yashddsy26
  • 21-01-2017
it's A ...cos (90- theta) = sin theta

so A
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