Solving a Basic Trigonometric Equation, Example 2

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thanks man i have been struggling in my class a lot but you are a life saver thanks man :) now i will pay attention in class so i dont stay behind

ColdEagle
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Patrick, please solve. If sinx+cosx=4/3, then sinx -cosx=?

jessecruz
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Um, isn't sine 45 and cosine 45 = 1/ under root 2 and not Under root 2/ 2?

BedFordRock
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idu I thought it would be 2pien not pie/2n

shenelldixon