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Question-207904




Question Number 207904 by Ahmed777hamouda last updated on 30/May/24
Commented by Ahmed777hamouda last updated on 30/May/24
How prove  a_n =2I_o J_n (nx)cos (nθ_g +n𝛉_n )  from fourier series
$$\mathrm{H}{ow}\:\boldsymbol{\mathrm{prove}}\:\:\boldsymbol{\mathrm{a}}_{\boldsymbol{\mathrm{n}}} =\mathrm{2}\boldsymbol{\mathrm{I}}_{{o}} \boldsymbol{\mathrm{J}}_{{n}} \left(\boldsymbol{\mathrm{nx}}\right)\mathrm{cos}\:\left(\boldsymbol{\mathrm{n}}\theta_{\boldsymbol{\mathrm{g}}} +\boldsymbol{\mathrm{n}\theta}_{\boldsymbol{\mathrm{n}}} \right) \\ $$$$\boldsymbol{\mathrm{from}}\:\boldsymbol{\mathrm{fourier}}\:\boldsymbol{\mathrm{series}} \\ $$
Commented by Berbere last updated on 30/May/24
What function do we start ?
$${What}\:{function}\:{do}\:{we}\:{start}\:?\: \\ $$

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