As $\theta$ increases from $0^{\circ}$ to $90^{\circ}$,the value of $\cos \theta$ :-

  • A
    Increases
  • B
    Decreases
  • C
    Remains constant
  • D
    First decreases then increases.

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Which of the following relation$(s)$ is/are correct?
$(A)\ \sin (90^{\circ}+\theta)=\cos (-\theta)$
$(B)\ \sin (180^{\circ}-\theta)=\cos (90^{\circ}-\theta)$
$(C)\ \sin (360^{\circ}-\theta)=\cos (360^{\circ}-\theta)$
$(D)\ \sin (180^{\circ}+\theta)=\cos (90^{\circ}-\theta)$

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