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[" 1) If tan "^(-1)2" and "tan^(-1)3" ar...

[" 1) If tan "^(-1)2" and "tan^(-1)3" are two angles of a triangle,"],[" then the third angle is: "],[" (a) "30^(@)],[" (b) "45^(@)],[" (c) "60^(@)],[" (d) "90^(@)]

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