Write the value of `|sin20o-cos20osin70ocos70o|` .

Explanation

To find the value of \( | \sin 20^\circ - \cos 20^\circ \cos 70^\circ | \), we can follow these steps:

### Step 1: Rewrite the Expression
We start with the expression:
\[ | \sin 20^\circ - \cos 20^\circ \cos 70^\circ | \]

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