- #1

sam0617

- 18

- 1

## Homework Statement

Use the Cauchy-Schwarz inequality to prove that for all real values of a, b, and theta (which ill denote as θ),

(a cosθ + b sinθ)

^{2}≤ a

^{2}+ b

^{2}

## Homework Equations

so the Cauchy-Schwarz inequality is | <

**u**,

**v**>| ≤ ||

**u**|| ||

**v**||

## The Attempt at a Solution

I'm having a difficult time figuring out what is my

**u**and my

**v**. Sorry for the stupid question.

Thank you for any guidance.

Last edited: