Let f (x) = (sinwx + coswx) ^ 2 + 2cos ^ 2wx-2 (W > 0) have a positive period of 2 π / 3 and find the range of [0,3 / π] The function is even when it is shifted to the right Q units

Let f (x) = (sinwx + coswx) ^ 2 + 2cos ^ 2wx-2 (W > 0) have a positive period of 2 π / 3 and find the range of [0,3 / π] The function is even when it is shifted to the right Q units

Let the positive period of function f (x) = (sinwx + coswx) ^ 2 + 2cos ^ 2wx-2 (W > 0) be 2 π / 3, find the value range of [0,3 / π] and translate Q units to the right to be even function analysis: ∵ the positive period of function f (x) = (sinwx + coswx) ^ 2 + 2cos ^ 2wx-2 (W > 0) is 2 π / 3f (x) = 1 + sin2wx + cos2wx-1 = √ 2