1.

A : Ifcot A + cot B + cos C = sqrt(3) " then " Delta ABCis an equilateral triangle R: If a^(2) + b^(2) + c^(2) =0 then a=b=c .

Answer»

A is TRUE , R is true and R is correct EXPLANATION of A
A is true , R is TRUEAND R is not correct explanation of A
A is true , R is FALSE
A is false , R is true

Answer :A


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