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If α + β = 90° and α:β = 2:1, then the ratio ofcos...
1.
If α + β = 90° and α:β = 2:1, then the ratio ofcosα to cosβ is1). $1:\sqrt{3}$2). 1:33). $1:\sqrt{2}$4). 1:2
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: - $1:\
SQRT
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