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21 January, 23:22

What is the value of x?

sin 49° = COS X

Enter your answer in the box.

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  1. 21 January, 23:48
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    The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try!

    Step-by-step explanation:

    here
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