sinx * cosx = 0.25

I cannot think of how to do it.

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- Jul 25th 2010, 10:51 AMStuck ManSolutions
sinx * cosx = 0.25

I cannot think of how to do it. - Jul 25th 2010, 10:57 AMStuck Man
I've realised I could use a double angle identity. Aren't they usually removed while solving equations?

- Jul 25th 2010, 12:01 PMMathelogician
Use the dubble angle identity of sin(2x). Therefore divide bothe sides by 2 to get x.