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Trigonometric Substitution

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Trigonometric Substitution
a. Explain why the substitution x = asin(Theta) guarantees that cos(Theta) is greater than or equal to 0 .
b. What sort of restriction must we put on x and a so that the substitution x = asec(Theta)will guarantee that tan(Theta) is greater than or equal to 0?

  • Trigonometric Substitution -

    x=1/2tan0 write f(X)= x/1+4

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