Mathematics · Vector Calculus

If r = (a sin t)i + (a cos t)j + (a tan t)k, then the value of |drdt × d2rdt2| is:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1a2 sec3 t✓
2a2 tan t
3a2 sin t
4a2 cos t

Correct answer

a2 sec3 t

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If r = (a sin t)i + (a cos t)j + (a tan t)k, then the value of |drdt × d2rdt2| is:

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If r = (a sin t)i + (a cos t)j + (a tan t)k, then the value of |drdt × d2rdt2| is:

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