If (sinA + cosA)/(sinA-cosA)= 3, then the value of sinA^4A - cos^4A= ?
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BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST
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