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3 January, 16:34

If cos x = sin (20+x) degrees and 0 degrees < x < 90 degrees, the value of x is

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  1. 3 January, 18:09
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    50

    Step-by-step explanation:

    Which number is greatest?

    2.89 times 10 Superscript negative 8

    1.997 times 10 Superscript 2

    8.9 times 10 Superscript negative 6

    5 times 10 Superscript negative 6
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