the sum of (x+3)observations is (x^4-81).find the mean of the observations.
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Answered by
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hii
Sum of (x + 3) observations = (x⁴ - 81)
Mean = x⁴ - 81 / x -3
= (x²)² - (9)² / x -3
= (x²-9)( x²+9) / x -3
= (x+3) (x-3) (x²+9) / x -3
= (x-3) ( x²+9)
∴ (x-3) ( x²+9) is the mean !
hope this helps u!
Sum of (x + 3) observations = (x⁴ - 81)
Mean = x⁴ - 81 / x -3
= (x²)² - (9)² / x -3
= (x²-9)( x²+9) / x -3
= (x+3) (x-3) (x²+9) / x -3
= (x-3) ( x²+9)
∴ (x-3) ( x²+9) is the mean !
hope this helps u!
RAHUL1901:
your ans is wrong
the right ans is (x-3)
pls check ur answer...and then reply futher
further*
bbye
i am in full confident
check your ans plz
can u tell where it is wrong?
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