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If E= ab sin x+bsqrt(1-a^(2)) cos x+c " ...

If `E= ab sin x+bsqrt(1-a^(2)) cos x+c " where" |a|lt 1" and for " a =(1)/(2),b=2,c=3` minimum and maximum value of E are m and M respectively then value of (m+M) is

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