# Can't determine the angle. Urgent help please.

## Homework Statement

Please find the attachment for vectors. If I know $$\alpha$$, $$\beta$$ & $$\theta$$ (colored angles) how can I find the angle between vectors C and D in terms of $$\alpha$$, $$\beta$$ & $$\theta$$?

## Homework Equations

Cross product & dot product

## The Attempt at a Solution

#### Attachments

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