Math, asked by hvgp, 1 year ago

please give me a answer

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Answered by Anonymous
1
Heya Dear, 

 _____________________________________

= ( 7.89 × 10⁵ ) - ( 5.5 × 10⁴ )

By taking 10⁴ common,

= 10⁴ ( 7.89 × 10 - 5.5 )

= 10⁴ ( 78.9 - 5.5 )

= 10⁴ × 73.4

= 73.4 × 10 × 10 × 10 × 10

= 7,34,000

            " or "

= 73.4 × 10⁴

= 7.34 × 10 × 10⁴

= 7.34 × 10⁵.


                    _________________________________

= ( 3 × 10⁻² )³

= ( 3³ ) × 10^( -2 × 3 )

= 27 × 10^(-6)

= 2.7 × 10 × 10^(-6 )

= 2.7 × 10^( -6 + 1 )

= 2.7 × 10^(-5).

Hope it helps !

By : VaibhavVardhana

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Answered by abhi86989
1
(7.89×10^5) - (5.5×10^4)
(7.89×100000) - (5.5×10000)
789000-55000
734000
7.34× 10^5
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