4cos^2a*sin4a
You asked:
Evaluate the expression: \(4 \cdot {\cos\left( a \right)}^{2} \cdot \sin\left( 4 a \right)\)
MathBot Answer:
\[4 \cdot {\cos\left( a \right)}^{2} \cdot \sin\left( 4 a \right) = 4 \sin{\left(4 a \right)} \cos^{2}{\left(a \right)}\]