If `alpha` is a root of `25cos^2theta+5costheta-12=0,pi/2ltalphaltpi` the `sin2alpha` is equal to:

If alpha is a root of 25cos^(2)theta+5cos theta-12=0,(pi)/(2)

If alpha is a root of 25cos^2 theta +5cos theta-12=0 ; pi/2< alpha < pi then sin2alpha ìs equal to……

If alpha is a root of 25 cos^2 theta+5 cos theta-12=0, pi/2 lt alpha lt pi , then sin 2alpha=

If alpha is a root of 25 cos^2 theta+ 5 cos theta- 12 = 0,pi/2 < alpha< pi , then sin 2 alpha is equal to :

If alpha is a root of 25 cos^2theta+5 costheta-12=0 and (pi/2)<(alpha)<(pi) , then sin2alpha is equal to

If a is a root of 25cos^(2)theta+5cos theta-12=0;(pi)/(2)

If alpha is a root of 25 cos^2theta+5costheta-12=0,pi/2

If alpha is a root of 25 cos^(2)theta + 5 cos theta - 12 =0, (pi)/(2) lt alpha lt pi , then sin 2alpha is equal to