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Andrews [41]
3 years ago
11

Verify that cos squared A plus Sin squared A is equal to 1 if A is equal to 90 degrees

Mathematics
1 answer:
Scilla [17]3 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

To verify cos²A + sin²A = 1 with A = 90° , then

cos²90° + sin²90°

= (0)² + (1)²

= 0 + 1

= 1

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