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Popular >

tan^2(15)

Solución

tan^{2} (1 5^{\circ})

Solución

7 - 43

+1

Pasos de solución

tan^{2} (1 5^{\circ})

Re-escribir usando identidades trigonométricas:

\frac{1 - cos ( 3 0 ^{\circ} )}{1 + cos ( 3 0 ^{\circ} )}

= \frac{1 - cos ( 3 0 ^{\circ} )}{1 + cos ( 3 0 ^{\circ} )}

Utilizar la siguiente identidad trivial:

cos (3 0^{\circ}) = \frac{3}{2}

= \frac{1 - \frac{3}{2}}{1 + \frac{3}{2}}

Simplificar

\frac{1 - \frac{3}{2}}{1 + \frac{3}{2}} : 7 - 43

= 7 - 43

Ejemplos populares

(100)/(cos(30))

\frac{100}{cos ( 3 0 ^{\circ} )}

1 - cos (\frac{3 π}{4})

sin (21 7^{\circ})

(sin(120))/(tan(45)+sin(210)cos(300))

\frac{sin ( 12 0 ^{\circ} )}{tan ( 4 5 ^{\circ} ) + sin ( 21 0 ^{\circ} ) cos ( 30 0 ^{\circ} )}

arccos (- \frac{1}{8})