joelg36851 joelg36851
  • 23-04-2018
  • Mathematics
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if sin 0 = 4/5 then what is cos(90-0)

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MrEquation
MrEquation MrEquation
  • 02-05-2018
The result would be back to 4/5.

You can test this by finding the solving for theta when sin(theta) = 4/5. Then, enter that value into the expression cos(90 - theta). You will be back to just 4/5.
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