Question: Perform the indicated operations. Express results in polar form. See Example 3. 2.78 56.8 + 1.37 207.3 Data from Example 3 Perform the addition 1.56337.56

Perform the indicated operations. Express results in polar form. See Example 3.

2.78∠56.8° + 1.37∠207.3°


Data from Example 3

Perform the addition 1.563∠37.56° + 3.827∠146.23°. In order to do this addition, we must change each number to rectangular form:

1.563/37.56 +3.827/146.23 = 1.563(cos 37.56 + jsin 37.56) +3.827(cos 146.23 + jsin


Converting back to polar form, we get 3.641∠122.24° (see Fig. 12.17).

146.23) = 1.2390 +0.9528j 3.1813 + 2.1273j = -1.9423 + 3.0801j -

1.563/37.56 +3.827/146.23 = 1.563(cos 37.56 + jsin 37.56) +3.827(cos 146.23 + jsin 146.23) = 1.2390 +0.9528j 3.1813 + 2.1273j = -1.9423 + 3.0801j -

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