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| Math Central | Quandaries & Queries |
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Question from Nazrul, a teacher: 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. |
Nazrul,
I would square both sides of sinA + cosA = 1 and then use the fact that sin2A + cos2A = 1 to simplify the expression.
Since an angle of zero degrees is an acute angle, A = 0 is one solution.
Harley
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