SOLUTION: 1. Show that cos(90-A)sin A=(sin A)^2

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Question 365925: 1. Show that cos(90-A)sin A=(sin A)^2
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Use the identity sinA+=+cos%2890-A%29. Then cos%2890-A%29sin+A+=+%28sinA%29%28sinA%29+=+%28sinA%29%5E2.