Answer Happy

Which of the following is Fourier series expansion of the function defined by f(x) = {1-2, 412<7<7. 0 <<*/2, 7- , / Select one: o 4 sin 6.x sin 8 ( sin 22 22 + sin 42 42 + + + ..) 82 O sin 63 sin 8x ( sin 2x 22 sin 4.3 42 + t.. ..) TT 62 82
O sin 6v sin 8.2 ( sin 2.2 22 sin 4x 42 + ..) . T 62 82 sin 3x sin 52 sin c 12 + sin 7o 72 + .) 32 52 O sin x sin 3x *+ do 3r sino by St...) + 5.5 52 + sin 7x + 72 12 32