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OpenStudy (cutiecomittee123):
Solve on an interval of [0,2pi) 2secx+5=1 I solved it down to sec x = -1/2 I know that sec x = 1/cos x but now I am stuck please help!
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OpenStudy (cutiecomittee123):
@zepdrix can you help?
OpenStudy (baru):
2secx=-4 secx=-4/2 secx=-2
OpenStudy (pawanyadav):
Sec x=-2. So cos x=-1/2
OpenStudy (cutiecomittee123):
oh yeah i did the calculations wrong. I got it thanks!
OpenStudy (cutiecomittee123):
so its 2pi/3 and 4pi/3
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OpenStudy (pawanyadav):
Right
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