Question

find the extreme values of ​

Answer 1

Answer:

★ sin²(60-x) + sin²(60 + x) = 1.5 cos² x + 0.5 sin² x

= 1.5 (cos²x) + 0.5 (1-cos²x)

= cos²x + 0.5

So 0 ≤ cos²x ≤ 1

Hence,

Minimum value = 0.5 = 1/2

Maximum value = 1.5 = 3/2

Answer 2

Answer:

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