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मान ज्ञात कीजिए - sin^(2)45^(@)*"cose...

मान ज्ञात कीजिए -
`sin^(2)45^(@)*"cosec"^(2)30^(@)- sec^(2)60^(@)`

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Calculate : sin^(2)45^(@)-"cosec"^(2)60^(@)+sec^(2)30^(@) .

Evaluate sin^(2)45^(@)+cos^(2)60^(@)+cosec^(2)30^(@) .

Find the value of sin^(2)45^(@)-"cosec"^(2)60^(@)+sec^(2)30^(@) .

Find the value of cosec^(2)30^(@)sin^(2)45^(@)-sec^(2)60^(@)

Calculate : sec^(2)45^(@)-cot^(2)45^(@)-sin^(2)30^(@)-sin^(2)60^(@) .

Prove that : 3cosec^(2)60^(@)-2cot^(2)30^(@)+sec^(2)45^(@)=0 .

Prove that : 3cosec^(2)60^(@)-2cot^(2)30^(@)+sec^(2)45^(@)=0 .

Evaluate each of the following : (sin^(2)+30^(@)+4cot^(2)45^(@)-sec^(2)60^(@))(cosec^(2)45^(@)sec^(2)30^(@))

Evaluate each of the following :- (cosec^(2)45^(@)sec^(2)30^(@))(sin^(2)30^(@)+4cot^(2)45^(@)-sec^(2)60^(@))