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Buktikan masing-masing ketidaksamaan eksponen di bawah ini. a. 2 n ≥ 2 n

Buktikan masing-masing ketidaksamaan eksponen di bawah ini.

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A. Acfreelance

Master Teacher

Mahasiswa/Alumni UIN Walisongo Semarang

Jawaban terverifikasi

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terbukti bahwa karena

terbukti bahwa 2 to the power of straight n greater or equal than 2 straight n karena table attributes columnalign right center left columnspacing 0px end attributes row cell 2 open parentheses straight k plus 1 close parentheses plus 2 open parentheses straight k minus 1 close parentheses end cell greater or equal than cell 2 left parenthesis straight k plus 1 right parenthesis space end cell end table

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Untuk n = 1 Untuk n = k maka akan diasumsikan terbukti Akan dibuktikan untuk n = k+1 maka Jadi terbukti bahwa karena

Untuk n = 1

table attributes columnalign right center left columnspacing 0px end attributes row cell 2 to the power of straight n end cell greater or equal than cell 2 straight n end cell row cell 2 to the power of 1 end cell greater or equal than cell 2.1 end cell row 2 greater or equal than cell 2 rightwards arrow Terbukti space end cell end table

Untuk n = k maka akan diasumsikan terbukti

table attributes columnalign right center left columnspacing 0px end attributes row cell 2 to the power of straight n end cell greater or equal than cell 2 straight n end cell row cell 2 to the power of straight k end cell greater or equal than cell 2. straight k end cell row cell 2 to the power of straight k end cell greater or equal than cell 2 straight k rightwards arrow Terbukti space end cell end table

Akan dibuktikan untuk n = k+1 maka

table attributes columnalign right center left columnspacing 0px end attributes row cell 2 to the power of straight n end cell greater or equal than cell 2 straight n end cell row cell 2 to the power of straight k plus 1 end exponent end cell greater or equal than cell 2 left parenthesis straight k plus 1 right parenthesis end cell row cell 2 to the power of straight k.2 to the power of 1 end cell greater or equal than cell 2 open parentheses straight k plus 1 close parentheses end cell row cell 2 straight k.2 end cell greater or equal than cell 2 open parentheses straight k plus 1 close parentheses end cell row cell 4 straight k end cell greater or equal than cell 2 open parentheses straight k plus 1 close parentheses end cell row cell 2 open parentheses straight k plus 1 close parentheses plus 2 open parentheses straight k minus 1 close parentheses end cell greater or equal than cell 2 left parenthesis straight k plus 1 right parenthesis rightwards arrow Terbukti space end cell end table

Jadi terbukti bahwa 2 to the power of straight n greater or equal than 2 straight n karena table attributes columnalign right center left columnspacing 0px end attributes row cell 2 open parentheses straight k plus 1 close parentheses plus 2 open parentheses straight k minus 1 close parentheses end cell greater or equal than cell 2 left parenthesis straight k plus 1 right parenthesis space end cell end table

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