Find the value of 2tan^2 A + sin^2 A- 1, if sin A=cosA.
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tanx=sinx/cosx so value of 2 tan^2a will be 2
sina =cosa it is at 45 degree angle
sin^2 a= 1/2
hence answer = 2+1/2-1=3/2
sina =cosa it is at 45 degree angle
sin^2 a= 1/2
hence answer = 2+1/2-1=3/2
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