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There are two families A and B. There ar...

There are two families A and B. There are `4` men, `6` women and `2` children in family A and `2` men, `2` women and `4` children in family B. The recommended daily amount of calories is `2400` for men, `1900` for women and `1800` for children, and `45` g of proteins for men, `55` g for women and `33` g for children. Represent the above information by matrices. Using matrices multiplication, calculate the total requirement of calories and proteins for each of the `2` families.

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ARIHANT PUBLICATION-CHSE ODISHA EXAMINATION PAPER 2020 -GROUP B (ANSWER ANY THREE QUESTIONS)
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  8. If sin (x + y) = y cos (x + y) then prove that dy/dx =-(1 + y^2)/y^2

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  10. Find the approximate value of sqrt(48.96)

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  13. Evaluate the following integrals : int(0)^(pi//2)log|(4+3sinx)/(4+3c...

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  15. Solve: xdy/dx+y=y^2ln x

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