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Check whether (i) 5sqrt2 (ii) (5)/(sqrt2...

Check whether (i) `5sqrt2` (ii) `(5)/(sqrt2)` (iii) `21+sqrt3` (iv) `pi+3` are irrational numbers or not?

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NCERT BANGLISH-REAL NUMBERS-EXERCISE - 1.4
  1. Check whether (i) 5sqrt2 (ii) (5)/(sqrt2) (iii) 21+sqrt3 (iv) pi+3 are...

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

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  3. Simplify the following expressions. (5+sqrt5)(5-sqrt3)

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

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  5. Simplify the following expressions. (sqrt(11)+sqrt7)(sqrt(11)+sqrt7)

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

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

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

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  9. Classify the following numbers as rational or irrational. (2sqrt7)/(...

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  10. Classify the following numbers as rational or irrational. 2pi

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

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

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

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

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

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  21. Rationalise the denominators of the following: (1)/(sqrt7-sqrt6)

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