Problems for Fourier analysis 例3试计算下列无穷积分 ∫ o sint dt=? too sin t dt=? ()( sint dt= t )=(m)le? 29 例3 试计算下列无穷积分 ( ) sin a ? t dt t + − =  ( ) 2 sin b ? t dt t + −     =    ( ) 3 sin c ? t dt t + −     =    ( ) 2 sin d cos ? t t dt t + −     =    Problems for Fourier Analysis