Question

Por favor lo nesecito

Answer 1

Reapuesta:

14=B

15=C

ESPERO QUE TE SIRVA

Y OUEDAS REGALARME IN CORAZON

Answer 2

PROBLEMA 14

$R = 5sen {}^{2} 45 + 8cos {}^{2} 30 - sen30 \\ R = 5( \frac{1}{ \sqrt{2} } ) {}^{2} + 8( \frac{ \sqrt{3} }{2} ) {}^{2} - \frac{1}{2} \\ R = 5 \times \frac{1}{2} + 8 \times \frac{3}{4} - \frac{1}{2} \\ R = \frac{5}{2} + 6 - \frac{1}{2} \\ R = 2 + 6 \\ R = 8$

PROBLEMA 15

$\frac{x - tg45}{tg45 +csc30} = csc60 \times ctg30 \\ \frac{x - 1}{1 + 2} = \frac{1}{ \sqrt{3} } \times \sqrt{3} \\ \frac{x - 1}{3} = 1 \\ x - 1 = 3 \\ x = 3 + 1 \\ x = 4$