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cos ^(3) 110 ^(@) + cos ^(3) 10^(@) + co...

`cos ^(3) 110 ^(@) + cos ^(3) 10^(@) + cos ^(3) 130^(@)=`

A

`3/4`

B

`3/8`

C

`(3sqrt3)/8`

D

`(3sqrt3)/4`

Text Solution

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