Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesFundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles
MediumThe range of $f(x) = \cos (x/3)$ is
- A$(-1/3, 1/3)$
- B$[-1, 1]$
- C$(1/3, -1/3)$
- D$(-3, 3)$
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Medium
View SolutionLet $\theta$ be an angle in the standard position such that the point $(-5, 12)$ lies on its terminal side. Then:
Which of the following have the same value?
$(a)$ $\sin 120^{\circ}$
$(b)$ $\cos 930^{\circ}$
$(c)$ $\tan 840^{\circ}$
$(d)$ $\cot (-1110^{\circ})$
$(a)$ $\sin 120^{\circ}$
$(b)$ $\cos 930^{\circ}$
$(c)$ $\tan 840^{\circ}$
$(d)$ $\cot (-1110^{\circ})$
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