DATE ... 2 412 1. 4 = cos ( 2 x + 1 ) 2 . y = sec - ( x ? ) 3 . y = e sec 1 x 4 4 = In 2x 5 . 9 = n 1+ x 2 b . y = 4 / n x 7 . y = cos ( Inx ) 8 - y = ez x 9 . y = gin ( e ) 10 y = ex In x