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Example Questions
Example Question #3 : Product Of Sines And Cosines
Use the product of cosines to evaluate
We are using the identity
. We will let and .
Example Question #4 : Product Of Sines And Cosines
Use the product of sines to evaluate where
The formula for the product of sines is
. We will let and .
Example Question #5 : Product Of Sines And Cosines
True or False: All of the product-to-sum identities can be obtained from the sum-to-product identities
False
True
True
All of these identities are able to be obtained by the sum-to-product identities by either adding or subtracting two of the sum identities and canceling terms. Through some algebra and manipulation, you are able to derive each product identity.
Example Question #6 : Product Of Sines And Cosines
Use the product of sine and cosine to evaluate .
The identity that we will need to utilize to solve this problem is
. We will let and .
Example Question #1 : Product Of Sines And Cosines
Use the product of cosines to evaluate . Keep your answer in terms of .
The identity we will be using is
. We will let and .
Example Question #1 : Product Of Sines And Cosines
Use the product of sines to evaluate .
The identity that we will need to use is
. We will let and .
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