Use the Sum-To-Product Formulas to Write the Given Expression as a Product

question 44

Multiple Choice

Use the sum-to-product formulas to write the given expression as a product. ​​ $$\sin 5 \theta - \sin 3 \theta$$ ​

• A)​​2 sin 4θ cos θ
• B)​-2 sin 4θ sin θ
• C)-​2 cos 4θ cos θ
• D)​2 cos 4θ sin θ
• E)​​2 cos 4θ cos θ

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Definitions:

Carbonate

A salt of carbonic acid, characterized by the presence of the carbonate ion, CO3^2-, or a compound containing this ion.

Covalent

A type of chemical bond where atoms share pairs of electrons.

Ionic

Relating to ions or the formation of ions by the gaining or losing of electrons, often discussed in the context of chemical bonds.

Metallic

Pertaining to, composed of, or resembling metal; having the characteristics or qualities of metals.