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12

Q1. Subtract the number from the number .

Solution

To subtract the numbers, first we express the numbers with same power of 10. Consider Therefore,
Q2. Simplify:

Solution

Q3. Write the following numbers in standard form: (i) (ii) 0.0000000014

Solution

(i) (ii)
Q4. If , find the value of x.

Solution

We have, Since, bases are equal, powers are also equal.
Q5. Simplify:

Solution



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