Evaluate `Delta=|0sinalpha-cosalpha-sinalpha0sinbetacosalpha-sinbeta0|`

Evaluate: =|[0,sinalpha,-cosalpha],[-sinalpha,0,sinbeta],[cosalpha,-sinbeta,0]|

Evaluate Delta=|{:(0,sinalpha,-cosalpha),(-sinalpha,0,sinbeta),(cosalpha,-sinbeta,0):}|

Evaluate : Delta=|{:(0,sinalpha,-cosalpha),(-sinalpha,0,sinbeta),(cosalpha,-sinbeta,0):}| .

Evaluate triangle = |[0,sinalpha,-cosalpha],[-sinalpha,0,sinbeta],[cosalpha,-sinbeta,0]|

Show without expanding at any stage that: [0,sinalpha-cosalpha],[-sinalpha,0,sinbeta],[cosalphas-sinbeta,0]|=0

Show without expanding at any stage that: [0,sinalpha-cosalpha],[-sinalpha,0,sinbeta],[cosalphas-sinbeta,0]|=0

Without expanding show that |(0,sinalpha, -cosalpha),(-sinalpha,0,sinbeta),(cosalpha, -sinbeta,0)| = 0

Find |A| if A=[{:(0,sinalpha,cosalpha),(sinalpha,0,sinbeta),(cosalpha,-sinbeta,0):}]

Evaluate |[cosalpha cosbeta,cosalpha sinbeta,-sinalpha],[-sinbeta,cosbeta,0],[sinalpha cosbeta,sinalpha sinbeta,cosalpha]|

Evaluate |[cosalphacosbeta,cosalphasinbeta,-sinalpha],[-sinbeta,cosbeta,0],[sinalphcosbeta,sinalphasinbeta,cosalpha]|