Calc AB NotesThings to remember before the chapters:Degrees030456090180270360

Radians0/6/4/3/23/22

Sin0(2)/2(3)/210-10

Cos1(3)/2(2)/20-101

Tan0(3)/31(3)undefined0Undefined0

*bolded = must knowPythagorean Identitiessin2 x + cos2 x = 1tan2 x + 1 = sec2 xcot2 x + 1 = csc2 xReciprocal IdentitiesCsc x = 1/sin xSec x = 1/cos xCot x = 1/tan xQuotient IdentitiesTan x = sin x/cos xCot x = cos x/sin xDouble Angle FormulaSin 2x = 2sin x *cos xCos 2x = cos2 x - sin2 x= 2cos2 x 1= 1 - 2sin2 xTan 2x = [2 tan (x)]/[1 tan2(x)]Inverse of a Function:Sin x is restricted to - /2