Q3 of 124 Page 21

Represent the following numbers in scientific notation.

(11000)3 (0.003)2 ÷ (30000)

(11000)3 (0.003)2( 30000)


Explanation: In scientific notation,


11000 = (1.1)×(10)4


0.003 = (3.0)×(10) - 3


30000 = (3.0)×(10)5


∴ (11000)3 (0.003)2( 30000)


⇒




1.331×106×3×10 - 5


= 3.993×101


∴ (11000)3 (0.003)2 ÷ (3000) in scientific notation is 3.993×101


More from this chapter

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3

Represent the following numbers in scientific notation.

(16000)3 ÷ (200)4

 3

Represent the following numbers in scientific notation.

(0.003)7(0.0002)5 ÷ ( 0.001)3

 1

State whether each of the following statements is true or false.

(i) log5125 = 3


(ii)


(iii) log4(6 + 3) = log46 + log43


(iv)


(v)


(vi) logaM - N = logaMlogaN

2

Obtain the equivalent logarithmic form of the following.

24 = 16