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  • 21-09-2020
  • Mathematics
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solve the value of sin²45°+cos²45°
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Respuesta :

Space
Space Space
  • 21-09-2020

Answer:

1

Step-by-step explanation:

sin²x = (sinx)²

cos²x = (cosx)²

Step 1: Define

sin²45° + cos²45°

Step 2: Rewrite

(sin45°)² + (cos45°)²

Step 3: Evaluate

sin45° = √2/2

cos45° = √2/2

(√2/2)² + (√2/2)²

1/2 + 1/2

1

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