find the distance between ( cos A - sin A) ( sin A , cos A)
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Answer:
√2
Step-by-step explanation:
distance between two points :
=√(sinA - cosA)² + (cosA+ sinA) ²
= √sin²A + cos²A - 2cosAsinA + cos²A + sin²A + 2cosASinA
=√1 + 1 ( sin²A + cos² A = 1)
= √2
hope you understand
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