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148.If cot inverse x + tan inverse 3= pi/2 , then x = (1) 1/3 (2) 1/4 (3)4 (4) 4

Answer» 148.If cot inverse x + tan inverse 3= pi/2 , then x = (1) 1/3 (2) 1/4 (3)4 (4) 4


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