First, we can simplify the expression sin43cos13 + cos103sin47 by using the sum-to-product identity for sine and cosine:
sin(A)cos(B) + cos(A)sin(B) = sin(A + B)
Therefore, sin43cos13 + cos103sin47 = sin(43 + 13) = sin56.
The simplified expression is sin56.
First, we can simplify the expression sin43cos13 + cos103sin47 by using the sum-to-product identity for sine and cosine:
sin(A)cos(B) + cos(A)sin(B) = sin(A + B)
Therefore, sin43cos13 + cos103sin47 = sin(43 + 13) = sin56.
The simplified expression is sin56.