Topics
Trig Graphs (rad)
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India
Class XI

Phase shifts for tangents

Lesson
Practice

Interactive practice questions

Consider the graph of $y=\tan x$y=tanx and state whether the following sentence is true or false.

A phase shift has the same effect as a horizontal translation.

True

A

False

B
Easy
< 1min

Consider the graph of $y=\tan x$y=tanx and state whether the following sentence is true or false.

Easy
< 1min

Consider the graph of $y=\tan x$y=tanx and state whether the following sentence is true or false.

Easy
< 1min

We want to identify how the coordinates of key points on the graph of $f\left(x\right)=\tan x$f(x)=tanx change as we apply a phase shift to produce the graph of $g\left(x\right)=\tan\left(x-\frac{\pi}{3}\right)$g(x)=tan(x−π3​).

Easy
6min
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Outcomes

11.SF.TF.1

Positive and negative angles. Measuring angles in radians and in degrees and conversion from one measure to another. Definition of trigonometric functions with the help of unit circle. Truth of the identity sin^2 x + cos^2 x = 1, for all x. Signs of trigonometric functions and sketch of their graphs. Expressing sin (x + y) and cos (x + y) in terms of sin x, sin y, cos x and cos y. Deducing the identities like following: cot(x + or - y), sin x + sin y, cos x + cos y, sin x - sin y, cos x - cos y (see syllabus document)

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