8 | AQ = _____ (in terms of a and c) |
9 | ![]() |
10 | so, WC = _____ | 11 |
Then, WA = _____ (in terms of a, b, and
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12 |
Now, recall from geometry that
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13 |
Substituting in step 12, (2a cos C)(b) = ( ) ( ) |
14 |
Simplifying step 13 and solving for c2, we obtain c2 = _____ |