Answers created by Skb

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• Point A is at #(-8 ,-7 )# and point B is at #(-3 ,-4 )#. Point A is rotated #pi/2 # clockwise about the origin. What are the new coordinates of point A and by how much has the distance between points A and B changed?
  
• Given cos 40=m and sin 10=n,can u please express sin 50 in terms of m and n?