Metadata
Author: QED
Data
Bulgarian[bg]
Поглеждаме ъгъла, чийто синус ни трябва и трябва да го умножим по - 1 Така, че когато х е π/ 2, всъщност взимаме sin ( - π/ 2 ) Но какъв е sin ( - π/ 2 )? Тук можем да видим, че е - 1
English[en]
But then what as x increases, what happens when x is π/ 2 the angle that we're inputting in to sine we're going to have to multiply by this negative so when x is π/ 2 we're really taking sin ( - π/ 2 ) but what's sin ( - π/ 2 ) but we can see over here here it's - 1