The range of F(x) = sin2x + 1 is _____.

Answer 1

The range of sin2x is -1≤sin(2x)≤1

-1≤sin (2x)≤1

Add 1 on each side '

-1+1≤sin (2x) +1 ≤1 +1

0≤ sin (2x) +1 ≤ 2

{y belongs to R:0≤ y ≤ 2}