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मनीष Patel 1 year, 4 months ago

Ti suggerisco di vedere il documento di Google Math dell'anno scorso
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Noor Chahal 1 year, 4 months ago

Rationalise the denominator of the expression 1/5-√7
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Manish Patel 1 year, 4 months ago

A body cover total distance divided by total time taken
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Gopal Paul 1 year ago

x²+y²+z²=(x+y+z)²-2(xy+yz+zx) Or, 83=(15)²-2(xy+yz+zx) Or, 225-83=2(xy+yz+zx) Or, 142÷2=xy+yz+zx Or, xy +yz+zx = 71 We know, x³+y³+z³-3xyz=(x+y+z) (x²+y²+z²-xy-yz-zx) Or, x³+y³+z³-3xyz=15(83-71) =15×12 =180 Therefore, x³+y³+z³-3xyz=180

Himanshu Sharma 1 year, 4 months ago

find the value of x3+y3+z3-3xyz if x2+y2+z2=83 and x+y+z=15
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Gopal Paul 1 year, 4 months ago

4√16=4×4 or, 16 4√81 =4×9 or, 36 Then 16÷36=4/9 Therefore, answer:4/9
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