Please provide the answer with proper explanation and method.

Dear student,. Sin (143) = sin (90+53) = cos ( 53) = 3/5 . Cos (127) = cos (90+37) = - sin(37) = -3/5. Therefore , sin(143) * cos(127) = (3/5) * (-3/5) = - 9/25. Answer option 1). Regards