അതിനാൽ, ഒന്നുകിൽ, ഈ ടാൻജെന്റ് പോസിറ്റീവ് x ആക് സിസുമായി ഉണ്ടാക്കുന്ന കോണിനെ അല്ലെങ്കിൽ x ആക്സിസിലേക്ക് ഈ നോർമലിൽ നിന്ന് ഉണ്ടാക്കുന്ന കോണിനെയാണ് നമ്മൾ എന്ന് വിളിക്കുന്നത്.
కాబట్టి, పాజిటివ్ x అక్షం నుండి ఈ టాంజెంట్ చేసే కోణం ఇదే అని మనం పిలుస్తాము లేదా ఈ x అక్షానికి నార్మల్ చేసే సాధారణ కోణం ఇదే అని కూడా మనం చెప్పగలం.