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[" 3) Broue that: - "],[2(cos^(2)45^(@)+...

[" 3) Broue that: - "],[2(cos^(2)45^(@)+tan^(2)60^(@))-6(sin^(2)45^(@)-tan^(2)30^(@))=6]

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Show that : 2tan^(2)60^(@)-6(sin^(2)45^(@)-tan^(2)30^(@))=5

Show that : 2tan^(2)60^(@)-6(sin^(2)45^(@)-tan^(2)30^(@))=5

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

Show that :- 2[cos^2 45^@+tan^2 60^@]-6[sin^2 45^@-tan^2 30^@]=6 .

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

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

If x sin45^(@)cos^(2)(60^(@))=(tan^(2)(60^(@))cos es0^(@))/(sec45^(@)cot^(2)(30^(@)))

Show that: 2(cos^(2)45o+tan^(2)60o)-6(sin^(2)45o-tan^(2)30o)=6 (ii) 2(cos^(4)60o+sin^(4)30o)-(tan^(2)60o+cot^(2)45o)+3sec^(2)30o=(1)/(4)

(5sin^(2)30^(@)+cos^(2)45^(@)-4tan^(2)30^(@))/(2sin30^(@).cos30^(@)+tan45^(@))=?