1) Resolver los siguientes ejercicios combinados: a) \( \left[5^{2}-\left(\frac{1}{3}\right)^{-3}\right]^{3} \cdot\left(-1+\frac{6^{-1}}{2^{-2}}\right)= \)

(b) \( \frac{p}{q}+0.13=\frac{5}{9} \) where \( \frac{p}{q} \) is a fraction in its lowest terms. Find the value of \( p \) and the value of \( q \).

\( a \) étant un nombre réel, on a: \( \sqrt{a^{2}} \) est égal à

If \( \frac{2}{L}, \frac{2}{m} \) are the two roots of the equation \( 4 x^{2}+3 x-2=0 \) find the quadratic equation of roots \( L, m \).

\( (2+\sqrt{3})(2-\sqrt{3}) \) est

1.3 Seja \( a \) um número real tal que \( -\frac{1}{4}<a<\frac{1}{4} \). Qual dos seguintes números não pertence ao conjunto \( A \) ? \( \square \mathrm{A} .5(a+1) \) \( \square \) C. \( 4(a+1) \)