Question

calcula x (3+x)sen30°=2x sec^2 45+6tan 45°​

Answer 1

Respuesta:

                 $\frac{-9}{7}$

Explicación paso a paso:

$(3+x)Sen(30) = 2x * Sec^{2} (45) + 6 Tan (45)$

$Sen(30) = \frac{1}{2} ; Sec (45 ) = \sqrt{2} ; Tan (45) = 1$

$( 3+x ) (\frac{1}{2} ) = 2x (\sqrt{2} )^{2} +6 (1)$

$\frac{(3+x)}{2} = 2x (2) + 6$

$\frac{3+x }{2} = 4x +6$   ---------------------   $3+x = 2 ( 4x +6 )$

$3+x = 8x + 12$

$x -8x = 12 -3$

$-7x = 9$

$x = \frac{-9}{7}$