The problem
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\frac{4\cdot 4248-56\cdot 300}{\sqrt{\left(4\cdot 816-56^2\right)\left(4\cdot 22576-300^2\right)}}
Answer provided by our tutors
You are entering in a purely numeric expression and in order to ensure that a final numeric answer is obtained, click on the 'Options' tab and change from Integer to Real numbers:
