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December 28, 2014

Homework Help: Precal

Posted by Tri on Thursday, June 21, 2007 at 11:10pm.

what is your answer for 8sin^2theta + sintheta -1 ?

and how would you do it ? thanks

You have not written an equation. There is nothing to "solve". Did you leave out an " = 0 " ?

Yeah sorry


Yeah sorry


Let x = sin theta
8x^2 +x -1 = 0
x = [-1 +/- sqrt(33)]/16
= 0.296535 or -0.421535
theta = 17.250 degrees or -24.931 degrees

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