The value of [\frac{10.3\times 10.3 \times10.3 +1 }{ 10.3\times 10.3 -10.3 +1 }] is

Decimals and Fractions Practice Test 5

Question : 23 of 30

Marks: +1, -0

The value of

[{10.3× 10.3 ×10.3 +1 }/{ 10.3× 10.3 -10.3 +1 }]

Solution:

[{10.3× 10.3 ×10.3 +1 }/{ 10.3× 10.3 -10.3 +1 }]

={(10.3)^3+(1)^3}/{(10.3)^2-10.3×1+1^2}

={(10.3+1)[{(10.3)^2-10.3×1+1^2}]}/{[(10.3)^2-10.3×1+1^2]}

= 10.3 + 1 = 11.3

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