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(2)/(3)( cos^(4) 30^(@)- sin^(4) 45^(@))...

`(2)/(3)( cos^(4) 30^(@)- sin^(4) 45^(@))-3(sin^2 60^(@)-sec^(2) 45^(@))+(1)/(4) cot^(2) 30^(@)` का मान ज्ञात करो ।

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Evaluate: (2)/(3)(cos^(4)30^(@)-sin^(4)45^(@))-3(sin^(2)60^(@)-sec^(2)45^(@))+(1)/(4)cot^(2)30^(@)

Show that 2(cos^(4)60^(@)+sin^(4)30^(@))-(tan^(2)60^(@)+cot^(2)45^(@))+3sec^(2)30^(@)=1/4

(5cos^(6)60^(@)+4sec^(2)30^(@)-tan^(2)45^(@))/(sin^(2)30^(@)+cos^(2)30^(@))

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

sin60^(@)*sec^(2)45^(@)-3tan30^(@).4sin60^(@)=

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

If x sin 45^(@) cos^(2)60^(@)=(tan^(2)60^(@) cosec 30^(@))/(sec 45^(@) cot^(2) 30^(@)) then x

If x sin 45^(@) cos^(2)60^(@)=(tan^(2)60^(@) cosec 30^(@))/(sec 45^(@) cot^(2) 30^(@)) then x