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[" 6.If "tan^(2)45^(@)-cos^(2)30^(@)=x s...

[" 6.If "tan^(2)45^(@)-cos^(2)30^(@)=x sin45^(@)cos45^(@)" then "x=?quad " [cBSE "2013" ] "],[[" (a) "2," (b) "-2," (c) "(1)/(2)," (d) "-(1)/(2)]]

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2sin45^(@)cos45^(@)

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

Evaluate sin45^(@)+cos45^(@)

If tan^(2) 45^(@)-cos^(2) 60^(@)=x sin 45^(@) cos45^(@) tan 60^(@) , then find the value of x.

2sin45^@*cos45^@ = …………….

If tan^2 45^@-cos^2 30^@=xsin45^@ \ cos45^@ , then x is (a) 2 (b) -2 (c) -1/2 (d) 1/2

Evaluate cos45^(@)cos30^(@)+sin45^(@)sin30^(@) .

Evaluate cos45^(@)cos30^(@)+sin45^(@)sin30^(@) .

Value of sin45^@/cos45^@

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