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" (iv) "sqrt(1+tan^(2)60^(@))...

" (iv) "sqrt(1+tan^(2)60^(@))

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(1+tan^(2)60^(@))^(2)=

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What is the value of ((1)/(2)) sec 30^(@) + sqrt2 tan 60^(@) ?

(2tan60^(@))/(1+tan^(2)60^(@)) is equal to :

If (1-tan^(2)60^(@))/(1+tan^(2)60^(@))=cosX , then the value of X is ___________

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If (2tan60^(@))/(1+tan^(2)60^(@))=cos(X) , then the value of X is