Math Chapter Wise Statics And Dynamics English MCQ Rajasthan TGT 2013 Q.If 'L' is Laplace transform operator and 's' is parameter then L {cosh at} = A2 2 a s a − B2 2 s s a − C2 2 a s a + D2 2 s s a + Show answer Correct answer: 2 2 s s a −