Use the Sum-To-Product Formulas to Rewrite the Sum or Difference $\theta$

question 57

Multiple Choice

Use the sum-to-product formulas to rewrite the sum or difference as a product.
Cos 3 $\theta$ + cos 8 $\theta$

• A) \(\cos \frac { 11 \theta } { 2 } \cos \frac { 5 \theta } { 2 }\)
• B) \(2 \cos \frac { 11 \theta } { 2 } \sin - \frac { 5 \theta } { 2 }\)
• C) \(2 \sin \frac { 11 \theta } { 2 } \sin \frac { 5 \theta } { 2 }\)
• D) \(\cos - \frac { 11 \theta } { 2 } \cos \frac { 5 \theta } { 2 }\)
• E) \(2 \cos \frac { 11 \theta } { 2 } \cos - \frac { 5 \theta } { 2 }\)

---

Definitions:

Antipsychotic Drugs

Medications used to treat psychiatric conditions by altering brain chemistry, particularly for schizophrenia and bipolar disorder.

Neuroleptics

A class of medication primarily used to manage psychosis, particularly in schizophrenia and bipolar disorder.

Monoamine Oxidase Inhibitors

A class of medications used to treat depression by inhibiting the enzyme responsible for breaking down neurotransmitters such as serotonin and dopamine.

Antidepressant Drugs

Medications prescribed to alleviate symptoms of depression by adjusting chemical imbalances in the brain.