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February 24th, 2013, 07:37 PM   #1
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trick question

_____ -8sin^2(x) = 8cos^2(x)


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February 24th, 2013, 07:40 PM   #2
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Re: trick question

Hint:

Now multiply through by 8.
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February 24th, 2013, 08:04 PM   #3
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Re: trick question

Hello, mathkid!

A strange way to write the problem . . .


Quote:



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February 25th, 2013, 03:51 AM   #4
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Re: trick question

ok yes I know the sin squared + cos squared = 1 solving algebraically for the missing variable or blank was so simple seeing it now. I just need to practice the trig more. makes me want to puke sometimes...lol
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