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निम्नलिखित के मूल्य ज्ञात करें : 4/3...

निम्नलिखित के मूल्य ज्ञात करें :
` 4/3 tan ^(2) 30^(@) + sin^(2) 60^(@) - 3 cos^(2) 60^(@) + 3/4 tan^(2) 60^(@) + 3/4 tan^(2) 60^(@) - 2 tan^(2) 45^(@)`

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Prove that : (4)/(3) tan ^(2) 30^(@) + sin ^(2) 60^(@) - 3 cos ^(2) 60^(@) + (3)/(4) tan^(2) 60^(@) - 2 tan^(2) 45^(@) = (25)/(36)

4 (sin ^ (4) 60 ^ (@) + cos ^ (4) 30 ^ (@)) - 3 (tan ^ (2) 60 ^ (@) - tan ^ (2) 45 ^ (@)) + 5cos ^ (2) 45 ^ (@)

Calculate : (4)/(3)cot^(2)30^(@)+3 sin^(2) 60^(@)-2 "cosec"^(2)60^(@)-(3)/(4) tan^(2)30^(@) .

2sin ^ (2) (30 ^ (@)) - 3cos ^ (2) (45 ^ (@)) + tan ^ (2) (60 ^ (@))

sin30 ^ (@) sin ^ (2) (60) ^ (@) + 3cos60 ^ (@) tan45 ^ (@) =

2tan ^ (2) 45 ^ (@) + cos ^ (2) 30 ^ (@) - sin ^ (2) 60 ^ (@)

2tan ^ (2) 45 ^ (@) - + cos ^ (2) 30 ^ (@) - sin ^ (2) 60 ^ (@) is

sin^(2) 60^(@) + 2 tan 45^(@) - cos^(2) 30^(@)

Evaluate: 3sin^(2)30^(@)+2tan^(2)60^(@)-5cos^(2)45^(@)