Evaluate the integral.

Integral from negative pi divided by $2$ to pi divided by $2$ sine $6$ x sine $6$ x font size decreased by $3$ dx$$$/2$$/2$sin$6$xsin$6$x$$dx

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Part $1$

Integral from negative pi divided by $2$ to pi divided by $2$ sine $6$ x sine $6$ x font size decreased by $3$ dx$$$/2$$/2$sin$6$xsin$6$x$$dxequals$=$enter your response here

$($Type an exact answer in terms of

pi$.)$