Integrate the following functions:f(x)=sin(5x)cos(5x)
Question
Integrate the following functions:f(x)=sin(5x)cos(5x)
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Solution
To integrate the function f(x) = sin(5x)cos(5x), we can use the power-reducing identity, which states that 2sin(A)cos(A) = sin(2A).
Step 1: Rewrite the function using the power-reducing identity f(x) = 1/2 sin(2*5x) = 1/2 sin(10x)
Step 2: Integrate the function ∫f(x) dx = ∫1/2 sin(10x) dx
Step 3: Use the integral of sin(ax), which is -1/a cos(ax) ∫f(x) dx = -1/20 cos(10x) + C
So, the integral of sin(5x)cos(5x) is -1/20 cos(10x) + C, where C is the constant of integration.
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