# Trig Equation

• May 22nd 2008, 07:41 PM
toxicsina
Trig Equation
2Sin^2θ-1=0
I dunno how to do this cuz of the square
any help would be appreciated.(Thinking)
• May 22nd 2008, 07:45 PM
o_O
$2\sin^{2} \theta - 1 = 0$

$\text{Let } x = \sin \theta .$

You get: $2x^{2} - 1 = 0$

Would you able to solve it like this ;)?
• May 24th 2008, 03:10 AM
detta
The given informations related to mathematics is very useful to me. thank u for your informations.

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detta

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