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Trig Substitution for a^2 + x^2
Worksheet
Grade Level
Calculus II
CAL2.30 Trig Substitution for a^2 + x^2
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Using the standard substitution x-2 = 9 tan(theta) for sqrt(81+(x-2)
2
), which triangle relationship gives tan(theta)?
A
tan(theta) = 9/(x-2)
B
tan(theta) = (x-2)/9
C
tan(theta) = (x-2)/sqrt(81+(x-2)
2
)
D
tan(theta) = 9/sqrt(81+(x-2)
2
)
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