Q1 of 34 Page 165

Use the principles above, compute the following:

5 – 10

Using the principle, for any two positive numbers x,y, we write,

-x + y = y-x


⇒ 5-10 = -5


Note: The sign of bigger number will come in the result.


More from this chapter

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1

Use the principles above, compute the following:

 1

Use the principles above, compute the following:

 1

Take as x different positive numbers, negative numbers and zero, and compute x + 1, x – 1, 1 – x. Check whether the equations below hold for all numbers.

(1 + x) + (1 – x) = 2

 1

Take as x different positive numbers, negative numbers and zero, and compute x + 1, x – 1, 1 – x. Check whether the equations below hold for all numbers.

x – (x – 1) = 1