yanahv7的部落格

標題:

Maths!!!!!!!(數學高手請進)

發問:

1) Convert the following hexadecimal no. into decimal no. (a)A7(16) (b)CDE(16) 2) Convert the following decimal no. into (i)binary no. (ii) hexadecimal no. (a) 28 (b)257

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1(a) 10*16+7 = 167 (b) 12*16^2+13*16+14=3294 2(a) (i) 28 = 1*16+1*8+1*4 = 1*2^4+1*2^3+1*2^2 = 11100 (ii) 28 = 1*16 + 12 = 1C (b)(i) 257 = 1*256+1 = 1*2^8+1 = 100000001 (ii) 257 = 1*16^2 + 1 = 101

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