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March 30, 2017

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The expression 4 - cos² A is equivalent to

1)5 - sec² A
2)5 - sin² A
3)5 + sin² A
4)5/sec² A

  • Algebra 2/ Trigonometry - ,

    4 - (1-sin^2 A)
    so suspect another typo

    4 + cos^2 A
    4 + (1-sin^2 A)
    5 - sin^2 A

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