A math teacher asks his students ...
Teacher: "Whose kids remember the yesterday's formula abbreviation ??"
Student: "What is the abbreviation sir?"
Teachers: "The abbreviation formula 'sinus A Per Sinus B Same as Tangen A (sinA / sinB = pangA)'"
Student: "Ga remember sir .. !!"
Teacher: "You guys have to remember it because it's going to take the exam."
Teacher: "Ni stands for hapal ya .." Sina Raucous Hands Shake-shake "smua understand ..!?"
Student: "Understand Pak ... !!"