Q9 of 53 Page 91

If m = 3 and n = 2 find the value of

mn – nm

Given, = mn – nm

= 32 23


= 9 8


= 1


mn – nm = 1


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9

If m = 3 and n = 2 find the value of

2m2 n2

 9

If m = 3 and n = 2 find the value of

2m3 + 3n2 – 5m2n

 10

Simplify and give reasons

 1

Express the following numbers in the standard form.

0.000000000947