y=2sin^2x+3cos2x+7, find range
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DEF is a right angled triangle, right angle at Flet EF=d. FD = e, DE =f and let p be the length of perpendicular from F on DE. Prove that pf = de.
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We convert the function in terms of sinx since the given function is a variable function and then using range of sinx proceed further
Ymax=10
Ymin=6
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