Calculus !

ni clue2 untuk mid calculus....semua ade 10 Q.. 5Q bro ariff kompem kter ley jwb dlm 5 min.. (2Q kene wat equation based on prob yg dberi.., kire soalan application gak r nie.. tp pilih satu je... ) Then, no continuity, 1 simple Q on limit, no Q on are (credit to tirah) terima kasih