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The equation of the tangent to the curve y=(4−x2)2/3 at x = 2 is
  • a)
    x = 2
  • b)
    x = – 2
  • c)
    y = – 1.
  • d)
    y = 2
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The equation of the tangent to the curvey=(4−x2)2/3at x = 2 isa)...
, which does not exist at x = 2 . However , we find that  , at x = 2 . Hence , there is a vertical tangent to the given curve at x = 2 .The point on the curve corresponding to x = 2 is (2 , 0). Hence , the equation of the tangent at x = 2 is x = 2
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Most Upvoted Answer
The equation of the tangent to the curvey=(4−x2)2/3at x = 2 isa)...
To find the equation of the tangent to the curve y = (4x^2)^(2/3) at x = 2, we need to follow these steps:

1. Find the derivative of the curve:
The derivative of y with respect to x can be found using the chain rule. Let's denote y as u^(2/3), where u = 4x^2.
dy/dx = (2/3) * u^(-1/3) * du/dx
= (2/3) * (4x^2)^(-1/3) * d(4x^2)/dx
= (2/3) * (4x^2)^(-1/3) * 8x
= (16/3) * (x^(-2/3)) * x
= (16/3) * x^(1/3)

2. Find the slope of the tangent line:
To find the slope of the tangent line at x = 2, substitute x = 2 into the derivative:
dy/dx = (16/3) * 2^(1/3)
= (16/3) * (∛2)

3. Find the y-coordinate of the point on the curve at x = 2:
Substitute x = 2 into the original equation y = (4x^2)^(2/3):
y = (4 * 2^2)^(2/3)
= (4 * 4)^(2/3)
= 16^(2/3)
= 4^2
= 16

4. Use the point-slope form of a line:
The equation of a line with slope m passing through the point (x1, y1) is given by:
y - y1 = m(x - x1)

Substituting the values we found:
y - 16 = (16/3) * (∛2)(x - 2)

5. Simplify the equation:
y - 16 = (16/3) * (∛2)x - (16/3) * (∛2) * 2
y - 16 = (16/3) * (∛2)x - (32/3) * (∛2)
y = (16/3) * (∛2)x - (32/3) * (∛2) + 16

Thus, the equation of the tangent to the curve y = (4x^2)^(2/3) at x = 2 is y = (16/3) * (∛2)x - (32/3) * (∛2) + 16, which can be simplified as y = (16/3) * (∛2)x - (32/3) * (∛2/3) + 16. The correct answer is option 'A', x = 2, which is not the correct equation of the tangent.
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The equation of the tangent to the curvey=(4−x2)2/3at x = 2 isa)x = 2b)x = – 2c)y = – 1.d)y = 2Correct answer is option 'A'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The equation of the tangent to the curvey=(4−x2)2/3at x = 2 isa)x = 2b)x = – 2c)y = – 1.d)y = 2Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The equation of the tangent to the curvey=(4−x2)2/3at x = 2 isa)x = 2b)x = – 2c)y = – 1.d)y = 2Correct answer is option 'A'. Can you explain this answer?.
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