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Let * be a binary operation, on the set of all non-zero real numbers, given by `a*b=(a b)/5` for all `a ,\ b in R-{0}` . Write the value of `x` given by `2*(x*5)=10` .

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`a∗b=ab/5` ​
`2∗(x∗5)=10`
` 2∗( 5x/5 ​ )=10` ...
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RD SHARMA-BINARY OPERATIONS-Solved Examples And Exercises
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  10. A binary operation * is defined on the set R of all real numbers by...

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  11. Let +6 (addition modulo 6) be a binary operation on S={0,\ 1,\ 2,\ ...

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  12. Let * be a binary operation defined by a*b=3a+4b-2 . Find 4*5.

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  14. Let * be a binary operation on N given by a*b=H C F\ (a ,\ b),\ \ a...

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  15. Let * be a binary operation on set of integers I , defined by a*b=2...

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  16. If a*b=a^2+b^2, then the value of (4*5)*3 is a*b=a^2+b^2, then the val...

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  17. If a*b denote the bigger among a and b and if a b=(a**b)+3 , then 4...

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  18. If the binary operation * on Z is defined by a*b=a^2-b^2+a b+4 , then ...

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  19. For the binary operation * on Z defined by a ast b=a+b+1 the identit...

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  20. If a binary operation * is defined on the set Z of integers as a ast...

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