Pertanyaan

Jika a > 0 , b > 0 , a  = b , maka

Jika $a > 0, b > 0, a \neq = b$ , maka $fraction numerator open parentheses straight a plus straight b close parentheses to the power of negative 1 end exponent open parentheses straight a to the power of negative 2 end exponent minus straight b to the power of negative 2 end exponent close parentheses over denominator open parentheses straight a to the power of negative 1 end exponent plus straight b to the power of negative 1 end exponent close parentheses open parentheses ab to the power of negative 1 end exponent minus straight a to the power of negative 1 end exponent straight b close parentheses end fraction equals...$

$fraction numerator negative 1 over denominator open parentheses straight a plus straight b close parentheses squared end fraction$
$fraction numerator negative ab over denominator open parentheses straight a plus straight b close parentheses squared end fraction$
$fraction numerator ab over denominator straight a plus straight b end fraction$

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$begin mathsize 12px style table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator open parentheses straight a plus straight b close parentheses to the power of negative 1 end exponent open parentheses straight a to the power of negative 2 end exponent minus straight b to the power of negative 2 end exponent close parentheses over denominator open parentheses straight a to the power of negative 1 end exponent plus straight b to the power of negative 1 end exponent close parentheses open parentheses ab to the power of negative 1 end exponent minus straight a to the power of negative 1 end exponent straight b close parentheses end fraction end cell equals cell fraction numerator open parentheses fraction numerator 1 over denominator straight a plus straight b end fraction close parentheses open parentheses 1 over straight a squared minus 1 over straight b squared close parentheses over denominator open parentheses 1 over straight a plus 1 over straight b close parentheses open parentheses straight a over straight b minus straight b over straight a close parentheses end fraction end cell row blank equals cell fraction numerator open parentheses fraction numerator 1 over denominator straight a plus straight b end fraction close parentheses open parentheses fraction numerator straight b squared minus straight a squared over denominator straight a squared straight b squared end fraction close parentheses over denominator open parentheses fraction numerator straight a plus straight b over denominator ab end fraction close parentheses open parentheses fraction numerator straight a squared minus straight b squared over denominator ab end fraction close parentheses end fraction end cell row cell Catatan colon space open parentheses fraction numerator 1 over denominator straight a plus straight b end fraction close parentheses open parentheses fraction numerator straight b squared minus straight a squared over denominator ab straight space. straight space ab end fraction close parentheses open parentheses fraction numerator ab over denominator straight a plus straight b end fraction close parentheses open parentheses fraction numerator ab over denominator straight a squared minus straight b squared end fraction close parentheses end cell rightwards arrow cell ab straight space bisa straight space dicoret end cell row blank equals cell open parentheses fraction numerator 1 over denominator straight a plus straight b end fraction close parentheses open parentheses fraction numerator straight b squared minus straight a squared over denominator 1 end fraction close parentheses open parentheses fraction numerator 1 over denominator straight a plus straight b end fraction close parentheses open parentheses fraction numerator 1 over denominator straight a squared minus straight b squared end fraction close parentheses end cell row blank equals cell open parentheses fraction numerator 1 over denominator straight a plus straight b end fraction close parentheses squared open parentheses fraction numerator negative open parentheses straight a squared minus straight b squared close parentheses over denominator 1 end fraction close parentheses open parentheses fraction numerator 1 over denominator straight a squared minus straight b squared end fraction close parentheses end cell row blank equals cell open parentheses fraction numerator 1 over denominator straight a plus straight b end fraction close parentheses squared open parentheses negative 1 over 1 close parentheses end cell row blank equals cell negative open parentheses fraction numerator 1 over denominator straight a plus straight b end fraction close parentheses squared end cell row blank equals cell fraction numerator negative 1 over denominator open parentheses straight a plus straight b close parentheses squared end fraction end cell row blank blank blank row blank blank blank row blank blank blank row blank blank blank row blank blank blank end table end style$