1.

Findthe extremevaluesof thefollowingfunctionover R. (i) sin^(2) (60^(0)+ x)+ sin^(2) (60^(0)- x) (ii)cos (x+ (Pi)/(3) ) +2sqrt(2) sin (x+ (pi)/(3))-3 (iii) 3 sin^(2) x+ 5 cos^(2) x (iv)cos 2 x+cos^(2) x (v )cos x cos ((2pi)/(3) + x)cos ((2pi)/(3)-x)

Answer»

3
2
`sqrt(3)`
`sqrt(2)`

ANSWER :C


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