alleryThe height of a vertical elementary strip is given by:
Ax equals f of y
By equals x times a
Cx equals y times b
Dy equals f of x
Answer & Solution
Correct answer: D. y equals f of x
1. The strip runs from the axis up to the curve.
2. The curve's height at that point is its function value.
3. So the height is y equal to f of x.
4. The answer is y equals f of x.
_Source: syllabus Mathematics, Ch 8 'Application of Integrals'_
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