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यदि `x+y=z` है तो व्यंजक `x^(3)+y^(3)-z^(3)+3xyz` किसके बराबर है? |
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Answer» Correct Answer - A `x+y=z` `x+y-z=0` If `a+b+c=0` then `a^(3)+b^(3)+c^(3)-3abc=0` `:. x^(3)+y^(3)-z^(3)=-3xyz` `:. x^(3)+y^(3)-z^(3)+3xyz=0` `=3xyz-3xyz=0` |
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