Question: 1 1. [5 marks] Let f(x, y) = ry 13 + 472 '- 3ry In(ry) and y(r) = cos r. Determine A f(x, y(x))
![1 1. [5 marks] Let f(x, y) = ry 13 +](https://s3.amazonaws.com/si.experts.images/answers/2024/06/666fb3f3d4afe_595666fb3f3be47f.jpg)

1 1. [5 marks] Let f(x, y) = ry 13 + 472 '- 3ry In(ry) and y(r) = cos r. Determine A f(x, y(x))
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