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scrieti sub forma unei singure puteri: 2.25x2.25^3x2.25^5x...x2.25^101


Răspuns :

2,25¹⁺³⁺....⁺101
⇒2,25[¹⁰¹⁺¹]/²·[¹⁰¹+¹]
⇒2,25¹⁰²/²·¹⁰²
⇒2,25⁵¹·¹⁰²
⇒2,25⁵²⁰²;⇒225⁵²⁰²/100⁵²⁰²;
 [tex]Produsul\;se\;mai\;scrie\;2,25^{1+3+5+...+101}\\ suma = 1+3+5+...+101=51^2=2601 \\ (2n-1=101 \;deci\;n(numarul\;termenilor\,sumei)=51)\\ Rezultat\;=\;2,25^{2601} [/tex]