ഈ , 0 ലേക്ക് അടുക്കുമ്പോൾ എന്ത് സംഭവിക്കുമെന്ന് നമ്മൾ നോക്കുന്നു, അതിനാൽ, സ്വാഭാവികമായും ഈ ലൈൻ ഈ പോയിൻറ് ലേക്ക് അടുക്കും, അത് ഇവിടെ ഈ പോയിൻറ്ൽ ടെ ഒരു ടാൻജെന്റ് ആയി മാറും, അതിനാൽ, ഇവിടെ ഈ ഡെറിവേറ്റീവ് കൃത്യമായി നമുക്ക് ടാൻജെന്റ് നൽകുന്നു, നമുക്ക് ടാൻജെന്റ്ന്റെ സമവാക്യവും ലഭിക്കും, എന്നാൽ ഇതാണ് നമ്മൾ ഇവിടെ ടാൻജന്റ് വെക്റ്റർന് സൂചിപ്പിക്കുന്നത്.
మరియు ఈ, 0 కి చేరుకున్నప్పుడు ఏమి జరుగుతుందో మనం చూస్తున్నాము. కాబట్టి, సహజంగానే ఈ రేఖ ఈ బిందువుకు చేరుకుంటుంది మరియు ఇది ఇక్కడ ఈ సమయంలో ఒక టాంజెంట్ గా మారుతుంది, దీనిని ఈ వర్ణించింది. కాబట్టి, ఇక్కడ ఈ డెరివేటివ్ మనకు టాంజెంట్ ను ఇస్తుంది, మనం పొందగలిగే టాంజెంట్ యొక్క సమీకరణం, కానీ ఇది మనం ఇక్కడ సూచించిన టాంజెంట్ వెక్టర్.