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Simplify the following expressions. (5...

Simplify the following expressions.
`(5+sqrt7)(2+sqrt5)`

Text Solution

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The correct Answer is:
`10+5sqrt5+2sqrt7+sqrt(35)`
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NCERT KANNAD-REAL NUMBERS-EXERCISE - 1.4
  1. Simplify the following expressions. (5+sqrt7)(2+sqrt5)

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  2. Simplify . (5+sqrt5)(5-sqrt3)

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  3. Simplify the following expressions. (sqrt3+sqrt7)^(2)

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  4. Simplify the following expressions. (sqrt(11)+sqrt7)(sqrt(11)-sqrt7)

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  5. Classify the following numbers as rational or irrational. 5-sqrt3

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  6. Classify the following numbers as rational or irrational. sqrt3+sqrt...

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  7. Classify the following numbers as rational or irrational. (sqrt2-2)^...

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  8. Classify the following numbers as rational or irrational. (2sqrt8)/(...

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  9. Classify the following numbers as rational or irrational. 4pi

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  10. Classify the following numbers as rational or irrational. (1)/(sqrt3...

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  11. Classify the following numbers as rational or irrational. (2+sqrt2)(...

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  12. In the following equations, find whether variables x, y, z etc. repres...

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  13. In the following equations, find whether variables x, y, z etc. repres...

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  14. In the following equations, find whether variables x, y, z etc. repres...

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  15. In the following equations, find whether variables x, y, z etc. repres...

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  16. In the following equations, find whether variables x, y, z etc. repres...

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  17. In the following equations, find whether variables x, y, z etc. repres...

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  18. Every surd is an irrational, but every irrational need not be a surd. ...

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  19. Rationalise the denominators of the following: (1)/(3+sqrt2)

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  20. Rationalise: (1)/(sqrt6-sqrt5)

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