Question

answer the question​

Answer 1

The solution is in the attachment

Hope this helps.....☝☝☝

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Answer 2

Answer:

2Sin²A-Cos²A=2

2sin²A-(1-sin²A)=2

2sin²A-1+sin²A=2

3sin²A=3

sin²A=1

therefore,. sinA=1

theta(A)=90°