[" 6.If "m" and M are the minimum and th...

[" 6.If "m" and M are the minimum and the maximum "],[" values of "4+(1)/(2)sin^(2)2x-2cos^(4)x,x in R" ,then "],[M-m" is equal to: [JEE MAIN ONLINE "2016]],[[" (A) "(15)/(4)," (B) "(9)/(4)," (C) "(7)/(4)," (D) "(1)/(4)]]

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