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" 4."sin^(2)30^(@)+sin^(2)45^(@)+sin^(2)...

" 4."sin^(2)30^(@)+sin^(2)45^(@)+sin^(2)60^(@)+sin^(2)90^(@)

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Evaluate each of the following :- sin^(2)30^(@)+sin^(2)45^(@)+sin^(2)60^(@)+sin^(2)90^(@)

Find the value of the following: (i) "sin"^(2)30^(@)+"sin"^(2)45^(@)+"sin"^(2)60^(@)+"sin"^(2)90^(@) (ii) 2"sin"^(2)30^(@)-3cos^(2)45^(@)+cos^(2)60^(@)

Evaluate each of the following : 2cos^(2)60^(@)+3sin^(2)45^(@)-3sin^(2)30^(@)+2cos^(2)90^(@)

Find the value of (4sin^(2)60^(@)-cos^(2)45^(@))/(tan^(2)30^(@)+sin^(2)0^(@))

Evaluate : (sin^(2)30^(@)+sin^(2)45^(@)-4cot^(2)60^(@))/(2sin30^(@)cos30^(@)+(1)/(2)tan60^(@))

Evaluate : (sin^(2)30^(@)+sin^(2)45^(@)-4cot^(2)60^(@))/(2sin30^(@)cos30^(@)+(1)/(2)tan60^(@))

Q.Determine x if (x sin^(2)30^(@)cos^(2)60^(@))/(4cos^(2)45^(@))=(3sin^(2)45^(@)+2cos^(2)30^(@))/(sin^(2)90^(@)-4cos^(2)45^(@))

Prove that: sin^(2)30^(@)cos^(2)45^(@)+4tan^(2)30^(@)+(1)/(2)sin^(2)90^(@)+(1)/(8)cot^(2)60^(@)=2

Find the value of : sin^(2)30^(@) cos^(2) 45^(@)+4tan^(2)30^(@) + 1/2 sin^(2) 90^(@) + 1/8 cot^(2) 60^(@) .