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17-03-2019
Mathematics

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If cosθ=sinβ then which of the following must be true?

If cosθsinβ then which of the following must be true class=

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Аноним Аноним

17-03-2019

Answer:

β = 90 - α.

Step-by-step explanation:

cos α = sin (90 - α) = sin β

Therefore β = 90 - α.

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