If 2 sin² A - cos²A = 2 , then find the value of A. 2
a. 30° b. 45° c. 60° d. 90°
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The answer is d 90 degrees for such a question. Especially if it is a multiple choice put all the values of the angle in the specific places and then do it you will find it easier. Also if you want to know the other way by which it can be solved it is given in the below image please excuse my handwriting
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