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If the tangent at ‘t’ on the curve y = 8t3 –1, x = 4t2 + 3 meets the curve again at t¢ and is normal to the curve at that point, then value of t must be -

Maths-General

  1. ± fraction numerator 1 over denominator square root of 3 end fraction    
  2. ± fraction numerator 1 over denominator square root of 2 end fraction    
  3. ± fraction numerator square root of 2 over denominator 3 end fraction    
  4. None of these    

    Answer:The correct answer is: ± fraction numerator square root of 2 over denominator 3 end fraction

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