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25-07-2021
Mathematics

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if cos7x-cos8x/1+2cos5x=cos(ax)-cos(bx),where a,b are positive integers, then a²+b²=??

pls help! :(

Respuesta :

Аноним Аноним

25-07-2021

Step-by-step explanation:

[tex]hope \: its \: helful[/tex]

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hi , I need help with 6a too :) thank you in advanced!