Pg 385 homework
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Pg. 385 Homework. Pg. 395#13 – 41 odd, graph the three inverse trig functions and label the domain and range of each. Memorization quiz through inverse trig functions on Thursday!! #43 y = 3.61 sin ( x + 0.59) #44 y = -5.83 sin ( x + 2.6)

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Pg. 385 Homework

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Pg 385 homework

Pg. 385 Homework

  • Pg. 395#13 – 41 odd, graph the three inverse trig functions and label the domain and range of each.Memorization quiz through inverse trig functions on Thursday!!

  • #43y = 3.61 sin (x + 0.59)

  • #44y = -5.83 sin (x + 2.6)

  • #46y = 5 sin (2x – 0.64)

  • #51D: (∞, ∞); R: [-5.39, 5.39]; P: 2π; max (0.38, 5.39); min (3.52, -5.39)

  • #9Graph

  • #10Graph

  • #35

  • #36No Solution!!

  • #37x = ±2.66 + 4kπ, where k is any integer

  • #38(-3.98, -3.75)U(-1.39, 0)U(1.39, 3.75)U(3.98, ∞)


7 2 inverse trigonometric functions

7.2 Inverse Trigonometric Functions

Inverse Functions

Inverse sin x

Consider y = sin x on the interval [-π/2, π/2]. Will it pass the HLT? Will it have an inverse?

An inverse can be defined as long as the domain of the original function lends itself to an inverse.

  • What is an inverse?

  • How can you tell it is an inverse both algebraically and graphically?

  • Will trig functions have an inverse?


7 2 inverse trigonometric functions1

7.2 Inverse Trigonometric Functions

Inverse Sine Function

Inverse Cosine Functions

The inverse cosine function, denoted y = cos-1 x or y = arccosx is the function with a domain of [-1, 1] and a range of [0, π] that satisfies the relation cosy = x.

If f(x) = cosx and f-1(x) = cos-1 x(f-1 ◦ f)(x) = x on [0, π] and(f ◦ f-1)(x) = x on [-1, 1]

  • The inverse sine function, denoted y = sin-1 x or y = arcsinx is the function with a domain of [-1, 1] and a range of [-π/2, π/2] that satisfies the relation sin y = x.

  • If f(x) = sin x and f-1(x) = sin-1 x(f-1 ◦ f)(x) = x on [-π/2, π/2] and(f ◦ f-1)(x) = x on [-1, 1]


7 2 inverse trigonometric functions2

7.2 Inverse Trigonometric Functions

Inverse Tangent Function

Finding the Domain and Range

f(x) = sin-1 (2x)

g(x) = sin-1 (⅓ x)

  • The inverse tangent function, denoted y = tan-1 x or y = arctanx is the function with a domain of (-∞, ∞) and a range of (-π/2, π/2) that satisfies the relation tan y = x.

  • If f(x) = tan x and f-1(x) = tan-1 x(f-1 ◦ f)(x) = x on (-π/2, π/2) and(f ◦ f-1)(x) = x on (-∞, ∞)


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