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NAN
NAN asked in Science & MathematicsMathematics · 8 years ago

I need help with trig homework please?

I am stuck on this problem:

Find all the roots in [0˚, 360˚). Use double angle frmulas to help if you do a symbolic.algebraic solution.

sin2x-sos2x=-1

X~_____

please help me

1 Answer

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  • Ed I
    Lv 7
    8 years ago
    Favorite Answer

    sin 2x - cos 2x = -1

    x = 0°, 135°, 180°, ...

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