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Given that log2 3=h and log2 5=k, express log2 0.45 in terms of h and k.

  • add maths - ,

    Dear Mandy,
    Here is the solution
    log2 0.45 = log2 (9/20)
    = log2 9 - log2 20
    = 2log2 3 - log2 (4x5)
    = 2h- (log2 4 + log2 5)
    = 2h-(2+k)
    = 2h-2-k
    Hope this helps

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