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  • 17-11-2020
  • Mathematics
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sqdancefan
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  • 17-11-2020

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Answer:

  • a = 1
  • b = -1

Step-by-step explanation:

Evaluate the expression given.

  a = √2 · cos(-π/4) = 1

  b = √2 · sin(-π/4) = -1

In summary, a=1, b=-1.

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