<PRE><B>Question 97337</B>
1-Find the exact value of this expression. sin^-1(-1/2) = -30 degrees
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2-Find the exact value of this expression. tan[cos^1(-1/4)] = -sqrt(13)
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3-Use a right triangle to write each expression as an algebraic expression. Assume that x is positive and that the given inverse trigonometric function is defined for the expression in x. sec(cos^1 1/x) = x
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Cheers,
San H.
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