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sinA + cosA = 1 
20091106 

From Nazrul: What is the solution of sinA+cosA=1 where A is an acute angle? Will A=0 degree be included in the solution? Please explain. Answered by Harley Weston. 





Is 100 degree angle an acute angle? 
20090902 

From Nazrul: Is 100 degree angle an acute angle? Please explain. Here 100<90. Answered by Robert Dawson. 


