xlajbd
xlajbd xlajbd
  • 02-02-2019
  • Mathematics
contestada

The value of cos 30° is the same as which of the following?

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eric271828
eric271828 eric271828
  • 02-02-2019
cos 30 can be written as 1/2. If you are not sure, you can use subtraction formula: sin(A-B) = sinAcosB - cosAsinB
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