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[" If "x in(pi,(3 pi)/(2))" ,then "4cos^...

[" If "x in(pi,(3 pi)/(2))" ,then "4cos^(2)((pi)/(4)-(x)/(2))+sqrt(4sin^(4)x+sin^(2)2x)" equals "],[[" (A) "2," (D) "0]],[[" (C) "1," (D) "0]]

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If x in((3 pi)/(2),2 pi), then 4cos^(2)((pi)/(2)-x)+4sqrt(cos2x+sin^(4)x) equals

If x in(pi,(3 pi)/(2)), then 4cos^(2)((pi)/(4)-(x)/(2))+sqrt(4sin^(4)x+sin^(2)2x) is always equal to (a)1(b)2(c)-2(d) none of these

If x in (pi,(3pi)/2), then 4cos^2(pi/4-x/2)+sqrt(4sin^4x+sin^2 2x) is always equal to (a) 1 (b) 2 (c) -2 (d) none of these

If x in (pi,(3pi)/2), then 4cos^2(pi/4-x/2)+sqrt(4sin^4x+sin^2 2x) is always equal to (a) 1 (b) 2 (c) -2 (d) none of these

If x in (pi,(3pi)/2), then 4cos^2(pi/4-x/2)+sqrt(4sin^4x+sin^2 2x) is always equal to (a) 1 (b) 2 (c) -2 (d) none of these

cos ((3pi)/( 4) + x) - cos((3pi)/( 4) -x) =- sqrt2 sin x

cos ((3pi)/( 4) + x) - cos((3pi)/( 4) -x) =- sqrt2 sin x

cos ((3pi)/( 4) + x) - cos((3pi)/( 4) -x) =- sqrt2 sin x

cos((3pi)/(4)+x)-cos ((3pi)/(4)-x)=-sqrt(2) sin x