Ekspresi 4: left parenthesis, StartFraction, sinh "a" "t" Over cosh "a" "t" plus cos left parenthesis, "b" plus "t" , right parenthesis , EndFraction , StartFraction, sin left parenthesis, "b" plus "t" , right parenthesis Over cosh ( "a" "t" ) plus cos left parenthesis, "b" plus "t" , right parenthesis , EndFraction , right parenthesissinhatcoshat+cosb+t,sinb+tcosh(at)+cosb+t
4
Ekspresi 5: "b" equals left bracket, 0 , StartFraction, 2 pi Over "n" , EndFraction , ... , 2 pi , right bracketb=0,2πn,...,2π