Question

2 sin squared theta + 2 cos squared theta ​

Answer 1

Answer:

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α = 90° or 270°

given that,

2 sin² α - cos² α =2

we know that,

sin² α + cos² α = 1

so,

2 sin² α -1+sin² α = 2

3 sin² α = 3

sin² α = 1

sin α = sin 90 ° or sin 270°

so,

α = 90° or 270°

Step-by-step explanation:

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