Verify the trigonometric identity sin (x + y) = sin (x) cos (y) + cos (x) sin
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Verify the trigonometric identity
sin (x + y) = sin (x) cos (y) + cos (x) sin (y)
for the angles x = 1.0000 rad, y = 2.00000 rad. Use as many digits as your calculator will display and check for round-off error.
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