Tuesday

October 21, 2014

October 21, 2014

Posted by **Christine** on Sunday, June 6, 2010 at 9:47pm.

2 sin^2(x)+ sin(x)=1

- Algebra 2 Honors -
**Reiny**, Sunday, June 6, 2010 at 9:50pmhint:

treat it like a quadratic.

Some students like to change it using something like this:

let sin(x) = y , then

2y^2 + y - 1 = 0

this one factors nicely, once you found y, sub that back into sinx

**Answer this Question**

**Related Questions**

Calculus - Determine the measure of A if 0 degrees is less or equal to angle A ...

trig - on the same set of axes: (0 degrees is greater than or equal to x and x ...

math - For which angles beta, with 0 degrees less than/equal to beta less than/...

Math/Trig - Solve: 2 sin x - 1 = 0 for 0 degrees is less than or equal to x is ...

i lied. very quick calc problem. - f(x) = abs(sin(x)), -pi less than or equal to...

Math - Solving Trig Equations - Solve each equation on the interval: 0 is less ...

Calculus - Find the measure of feta, to the nearest degree where o degrees is ...

trig - I have to retype this. For which angles theta, with 0 degrees less than/...

Precalculs - I have no idea how to do these type of problems. -------Problem...

Precalc - Find the values of x between (or equal to) 0 and 360 degrees to ...