Which of the following statements is/are...

Which of the following statements is/are correct

` x + sin x` is increasing function

` sec x` is neither increasing nor decreasing function

`x + sin x` is decreasing function

`sec x ` is an increasing function

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The correct Answer is:

A, B

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Which of the following statement is/are correct?

The diagonals of a rectangle are perpendicular

The diagonals of a rhombus are equal

Every square is a rhombus

None of these

`[Ag(NH_(3))_(2)]^(+)` is linear with sp hybridised `Ag^(+)` ion.

`NiCl_(4)^(2-), VO_(4)^(3-)" and "MnO_(4)^(-)` have tetrahedral geometry.

`[Cu(NH_(3))_(4)]^(2+), [Pt(NH_(3))_(4)]^(2+)" and "[Ni(CN)_(4)]^(2-)` have `dsp^(2)` hybridisation of the metal ions.

`Fe(CO)_(5)` have trigonal bipyramidal structure with `dsp^(3)` hybridised iron.

be differentiated by Victor meyer's test

can be differentiated by Lucas test

can be differentiated by `Cu_(2)Cl_(2)+NH_(2)OH`

`MeNH_(2)` and `Me_(2)NH` can be differentiated by carbyl amine test