document.write( "Question 865398: Solve the equation on the given interval, expressing the solution for x in terms of inverse trigonometric functions. (Enter your answers as a comma-separated list.)
\n" ); document.write( "(tan x)2 + 2 tan x − 63 = 0 on (−π/2, π/2)
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Algebra.Com's Answer #521721 by stanbon(75887)\"\" \"About 
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Solve the equation on the given interval, expressing the solution for x in terms of inverse trigonometric functions. (Enter your answers as a comma-separated list.)
\n" ); document.write( "(tan x)^2 + 2 tan x − 63 = 0 on (−π/2, π/2)
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\n" ); document.write( "Factor:
\n" ); document.write( "(tan(x)+9)(tan(x)-7) = 0
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\n" ); document.write( "tan(x) = -9 or tan(x) = 7
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\n" ); document.write( "arctan(-9) = -1.46 radians
\n" ); document.write( "arctan(7) = 1.43 radians
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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