Home > Trigonometry > Basic Inverse Trigonometric Functions

How do you evaluate #arcsin(.4)#?

Answer 1

Evaluate arcsin (0.4)

Ans: 23. 58 and 156.42 deg

sin x = 0.40 Calculator gives --> #x = 23.58# deg Trig unit circle gives another arc x that has the same sin value: #x = 180 - 23.58 = 156.42# deg

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Zoe Austin

To evaluate arcsin(0.4):

Use a scientific calculator or reference table to find the arcsine (inverse sine) of 0.4. The result will be in radians or degrees, depending on the mode your calculator is set to. If your calculator is set to radians, the result will be approximately 0.4115 radians. If it's set to degrees, the result will be approximately 23.578 degrees.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.