수식 4: left parenthesis, "f" left parenthesis, "A" , right parenthesis plus "t" left parenthesis, "f" left parenthesis, "B" , right parenthesis minus "f" left parenthesis, "A" , right parenthesis , right parenthesis , "g" left parenthesis, "A" , right parenthesis plus "t" left parenthesis, "g" left parenthesis, "B" , right parenthesis minus "g" left parenthesis, "A" , right parenthesis , right parenthesis , right parenthesisfA+tfB−fA,gA+tgB−gA
00
정의역 t 최솟값:
less than or equal to "t" less than or equal to≤t≤
11
정의역 t 최댓값:
4
수식 5: left parenthesis, "t" "f" left parenthesis, "A" , right parenthesis , "t" "g" left parenthesis, "A" , right parenthesis , right parenthesistfA,tgA
00
정의역 t 최솟값:
less than or equal to "t" less than or equal to≤t≤
11
정의역 t 최댓값:
5
수식 6: "f" left parenthesis, "x" , right parenthesis equals cosine StartFraction, 2 pi "x" Over "L" , EndFractionfx=cos2πxL
6
수식 7: "g" left parenthesis, "x" , right parenthesis equals sine StartFraction, 2 pi "x" Over "L" , EndFractiongx=sin2πxL