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Question

If m=2, find the value of:

(i) m2 (ii) 3m5 (iii) 95m

(iv) 3m22m7 (v) 5m24

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Solution

(i) m2

When m=2,m2=22=0

(ii) 3m5

When m=2,3m5=(3×2)5=65=1

(iii) 95m

When m=2,95m=9(5×2)=910=1

(iv) 3m22m7

When m=2, then 3m22m7=3×(22)(2×2)7

=1247=1

(v) 5m24=[5×22]4=1


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