Question Number 100912 by mhmd last updated on 29/Jun/20
$${find}\:{the}\:{fourier}\:{series}\:{of}\:{the}\:{function}\:\begin{cases}{{x}\:\:\:\:\:\:\:\:\:\:−\mathrm{2}\leqslant{x}\leqslant\mathrm{0}}\\{{x}+\mathrm{2}\:\:\:\:\:\:\:\:\mathrm{0}\leqslant{x}\leqslant\mathrm{2}}\end{cases}\:\:\:\:\:\: \\ $$$${help}\:{me}\:{sir}\:? \\ $$