Expression 4: "b" Subscript, 1 , Baseline equals StartFraction, 1 Over pi , EndFraction Start integral from negative pi to pi , end integral, "f" left parenthesis, "x" , right parenthesis sine "x" "d" "x"b1=1π∫π−πfxsinxdx
equals=
00
4
Expression 5: "a" Subscript, 2 , Baseline equals StartFraction, 1 Over pi , EndFraction Start integral from negative pi to pi , end integral, "f" left parenthesis, "x" , right parenthesis cosine 2 "x" "d" "x"a2=1π∫π−πfxcos2xdx
equals=
0.2 0 7 5 4 9 1 2 5 0 5 80.207549125058
5
Expression 6: "b" Subscript, 2 , Baseline equals StartFraction, 1 Over pi , EndFraction Start integral from negative pi to pi , end integral, "f" left parenthesis, "x" , right parenthesis sine 2 "x" "d" "x"b2=1π∫π−πfxsin2xdx
equals=
00
6
Expression 7:
7
Expression 8: "a" Subscript, 0 , Baseline plus "a" Subscript, 1 , Baseline cosine "x" plus "b" Subscript, 1 , Baseline sine "x" plus "a" Subscript, 2 , Baseline cosine 2 "x" plus "b" Subscript, 2 , Baseline sine 2 "x"a0+a1cosx+b1sinx+a2cos2x+b2sin2x