What is the value of sin(234) ?

The value of sin(234) is -(sqrt(5)+1)/4

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sin(234)

sin (23 4^{\circ})

- \frac{5 + 1}{4}

Solution steps

sin (23 4^{\circ})

Rewrite using trig identities:

cos (14 4^{\circ})

= cos (14 4^{\circ})

Rewrite using trig identities:

- cos (3 6^{\circ})

= - cos (3 6^{\circ})

Rewrite using trig identities:

cos (3 6^{\circ}) = \frac{5 + 1}{4}

= - \frac{5 + 1}{4}

sin (22)

tan (\frac{π}{3} - \frac{π}{4})

ln (sec (\frac{π}{2}))

arccos (1.13178)

arcsec (\frac{7}{4})