वक्र y = 2x3 - 5x2 + x - 2 पर बिंदु (1, -1) पर अभिलंब की ढलान क्या है?

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  1. -4
  2. -3

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Option 2 :
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अवधारणा:

वक्र y = f(x) के स्पर्श रेखा की ढलान m =

अभिलंब की ढलान = =

गणना:

दिया गया वक्र y = 2x3 - 5x2 + x - 2

समीकरण को x के सापेक्ष अवकलन करने पर

= 6x2 - 10x + 1

बिंदु (1, -1) पर ढलान

x = 1 पर = 6(1)2 - 10(1) + 1

= 6 - 10 + 1

= -3

अभिलंब की ढलान (m') =

m' = =

बिंदु (1, -1) पर वक्र के अभिलंब की ढलान 1/3 है।

विकल्प 2 सही है। 

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