pre-cal 40s march 26, 2009
DESCRIPTION
Proofs of the sum and difference identities.TRANSCRIPT
cosbmw by marymactavish
Sum and Difference Proofs (continued ...)
A Quiz
PICT0015 by matt-hieu ergosteur
Proofs of the Sum and Difference Identities ...
Rotate ∠ROP so that OP lies on the positive x-axis
O O
TO BE COMPLETED
Proofs of the Sum and Difference Identities ...
Rotate ∠ROP so that OP lies on the positive x-axis
O O
Recall the Even and Odd Identities
sin(-x) = -sin(x) cos(-x) = cos(x) tan(-x) = -tan(x)
The sine and tangent functions are ODD functions. Cosine is an EVEN function.
Proofs of the Sum and Difference Identities ...
Rotate ∠ROP so that OP lies on the positive x-axisO
O
Recall the Even and Odd Identities
sin(-x) = -sin(x) cos(-x) = cos(x) tan(-x) = -tan(x)
The sine and tangent functions are ODD functions. Cosine is an EVEN function.