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MHT-CET PCM 03 — MHT - CET STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceMHT - CETMHT-CET PCM 031 Mark
MCQ
For $0<\theta<\pi$, if $A=`[(\operatorname{costheta,}$-sintheta), (sintheta, costheta)]`, then ______
  • A
    $A^{\top}=A$
  • B
    $A^{\top}=-A$
  • C
    $A^2=1$
  • ✓
    $A^{\top}=A^{-1}$
✓

Answer

Correct option: D.
$A^{\top}=A^{-1}$
D

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