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**Question**

8)

a) Work out an estimate for the value of

a) Work out an estimate for the value of

**[2 marks]**

(2.3)^{6 } = 148 correct to 3 significant figures.

b) Find the value of (0.23)^{6 } correct to 3 significant figures.

**[1 mark]**

b) Find the value of 5^{-2}

**[1 mark]**