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Mathematics 15 Online
OpenStudy (anonymous):

Add: -30∠-150° - 25∠40°

OpenStudy (crazypizzalover):

try mathway.com it helps me alot just type what you put here in there :) @sydneyarnea

OpenStudy (anonymous):

I've already tried

OpenStudy (campbell_st):

can you give any context to the question to help understand what is being asked

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