Q. 15.0( 3 Votes )

# Convert the following rational numbers into decimals and state the kind of decimal expansion.

i. ii.

iii. iv.

v. vi.

vii. viii.

Answer :

i. , the decimal expansion is terminating.

ii. , the decimal expansion is non-terminating and recurring.

iii. , the decimal expansion is non-terminating and recurring.

iv. , the decimal expansion is terminating.

v. , the decimal expansion is non-terminating and recurring.

the decimal expansion is non-terminating and recurring.

vi. the decimal expansion is non-terminating and recurring.

vii. , the decimal expansion is non-terminating and recurring.

viii. , the decimal expansion is terminating.

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Without actual division, find which of the following rational numbers have terminating decimal expansion.

i. ii.

iii. iv.

Tamilnadu Board Math Term-IWrite the following numbers in decimal form.

3.25 × 10^{-6}

Obtain the equivalent exponential form of the following.

Tamilnadu Board Math Term-III

Find the value of the following

Tamilnadu Board Math Term-III

Write the following numbers in decimal form.

1.86 × 10^{7}

Solve the following equations.

Tamilnadu Board Math Term-III

Convert the following rational numbers into decimals and state the kind of decimal expansion.

i. ii.

iii. iv.

v. vi.

vii. viii.

Tamilnadu Board Math Term-IObtain the equivalent logarithmic form of the following.

3^{5} = 243

Prove the following equations.

Tamilnadu Board Math Term-III

Prove the following equations.

log_{5}0.00125 = 3 - 5log_{5}10