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(-8/9×-6/7)‐(1/10×‐3/5)+(3/5×‐2/7)‐(8/9×‐5/11) please help me in this question ​

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(-8/9×-6/7)‐(1/10×‐3/5)+(3/5×‐2/7)‐(8/9×‐5/11) please help me in this question ​

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Julia



1. Let X and Y be two independent random variables with Var(X)=9 and Var(Y)=3 then Var(4X-
2Y+6) is
d)256

Write the smallest nine digit number which has the digit seven at all it’s all odd positions starting from the ones place

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