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" 22."[" ईd "" 21."41:2tan^(2)45^(@)+cos...

" 22."[" ईd "" 21."41:2tan^(2)45^(@)+cos^(2)30^(@)-sin^(2)60^(@)

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Evaluate : 2tan^(2)45^(@)+cos^(2)30^(@)-sin^(2)60^(@)

2tan ^ (2) 45 ^ (@) - + cos ^ (2) 30 ^ (@) - sin ^ (2) 60 ^ (@) is

4sin^(2)60^(@)+3tan^(2)30^(@)-8sin45^(@)*cos45^(@)

2 tan ^ 2 45 ^@ + cos ^ 2 30 ^@ - sin ^ 2 60 ^@ = ?

Evaluate : ( 5 cos ^(2) 60^(@) + 4 sec ^(2) 30^(@) - tan ^(2) 45^(@))/( sin ^(2) 30^(@) + cos ^(2) 30^(@))