I need solve for 18 question for April 1, 2020April 1, 2020 Calculus 3 with full steps please Question i need solve for 18 question for Calculus 3 1 x 9)sec cos 1 sec sec 1 6 x / 6 11 1 ,asx 0andcosx sec x 6 6 sec sec 1 , as sec sec 1 x x x x 10)Let sin 1 xxx2 t sin t cos t 1 sin 2 t 1 224 4 x22 1 x 4 x2Hence cos sin cos t 2 2… Math