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[" 34.Value of "cot^(2)30^(@)*2cos^(7)60...

[" 34.Value of "cot^(2)30^(@)*2cos^(7)60^(@)-3/4sec'45^(@)*4sin'30^(@)is],[[" (i) ",2," (iii) ",1," (iv) "0]]

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Calculate : cot^(2)30^(@)-2cos^(2)60^(@)-(3)/(4)sec^(2)45^(@)-4sin^(2)30^(@) .

Find the value of cot^2 30^@-2cos^2 60^@- 3/4 sec^2 45^@-4sin^2 30^@ .

cot^(2)30^@-2cos^(2)30^@-(3)/(4)sec^(2)45^@+(1)/(4)csc^(2)30^@

The value of (sec^(2)45^(@)-cot^(2)45^(@))-(sin^(2)30^(@)+sin^(2)60^(@)) is

The value of (cos^(2)60^(@)+4sec^(2)30^(@)-tan^(2)45^(@))/(sin^(2)30^(@)+cos^(2)30^(@)) is

The value of (sec^(2)45^@-cot^(2)45^@)-(sin^(2)30^@+sin^(2) 60^(@)) is

Find the value of cos^2 30^@-2cos^2 60^@-4sin^2 45^@+tan45^@ .