from Griffith's, problem 9.15: Suppose Ae^iax + Be^ibx = Ce^icx, for some nonzero constants A, B, C, a, b, c, and for all x. Prove that a = b = c and A + B = C(adsbygoogle = window.adsbygoogle || []).push({});

I'm definitely confused on where to begin my manipulation. It seems quite reasonable to meet that the constants should be equal, and the amplitudes should sum up to C but I dont know how to get there mathematically.

Can someone give me a hint to get me started?

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# Need some help with a proof

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