Confused About Manual Calculation of r & θ

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SUMMARY

The discussion focuses on the manual calculation of polar coordinates, specifically the values of r and θ. The user attempted to verify the results from Wolfram Alpha, which provided r = 1.1147 and θ = 75.9. However, their manual calculations yielded different results, leading to confusion. The community is engaged in troubleshooting the discrepancies in the calculations.

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blackandyello
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i tried evaluating this http://www4a.wolframalpha.com/Calculate/MSP/MSP47881a005158fa72fi31000026df4f1iaf7g05e7?MSPStoreType=image/gif&s=49&w=109&h=39

and the correct answer r = 1.1147 and theta = 75.9


however, i tried to do it manually and ended with this

http://www4a.wolframalpha.com/Calculate/MSP/MSP25561a0055g7ha78cb0g0000166dhfc7i3hc7dhe?MSPStoreType=image/gif&s=14&w=134&h=37

with different r and theta. any ideas?

tnx
 
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