Evaluate the definite integral.
∫
0
π
2
sin
(
2
t
)
d
t
\displaystyle {\int_{{{0}}}^{{\frac{\pi}{{2}}}}}{\sin{{\left({2}{t}\right)}}}{\left.{d}{t}\right.}
∫
0
2
π
sin
(
2
t
)
d
t
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\displaystyle
Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity