[" 2.In a triangle "ABC" if tan "C<0" th...

[" 2.In a triangle "ABC" if tan "C<0" then : "],[[" (a) "tan A tan B<1," (b) "tan A tan B>1],[" (c) "tan A+tan B+tan C<0," (d) "tan A+tan B+tan C>0],[" 3.The inequality "4sin3x+5>=4cos2x+5sin x" is true for "x in]]

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