Value of cos0^(@). Cos 30^(@) . cos45^(@...

Value of `cos0^(@). Cos 30^(@) . cos45^(@) . cos60^(@) . Cos90^(@)` is __________.

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The value of cos0^(@)cos30^(@)cos45^(@)cos60^(@)cos90^(@) is:

`sqrt(6)//8`

Find the value of cos1^(@).cos2^(@).cos3^(@).cos90^(@)

`-1`

`alpha`

The value of sin 0^(@) + cos 30^(@) - tan 45^(@) + cosec 60^(@) + cot 90^(@) is equal to

`(5 sqrt(3) - 6)/(6)`

`(-6 + 7 sqrt(3))/(6)`