All Precalculus Resources
Example Questions
Example Question #21 : Find The Value Of Any Of The Six Trigonometric Functions
What is the value of ?
Possible Answers:
Correct answer:
Explanation:
The sine of an angle corresponds to the y-component of the triangle in the unit circle. The angle is a special angle. In the unit circle, the hypotenuse is the radius of the unit circle, which is 1. Since the angle is
, the triangle is an isosceles right triangle, or a 45-45-90.
Use the Pythagorean Theorem to solve for the leg. Both legs will be equal to each other.
Rationalize the denominator.
Therefore, .
Matthew
Certified Tutor
Certified Tutor
University of Maryland-College Park, Bachelor of Science, Economics. University of Maryland-College Park, Master of Science, ...
Abbie
Certified Tutor
Certified Tutor
University of Kansas, Bachelor of Science, Mathematics Teacher Education. University of Kansas, Master of Science, Curriculum...
All Precalculus Resources
Popular Subjects
Calculus Tutors in Washington DC, ISEE Tutors in Seattle, Biology Tutors in Atlanta, Chemistry Tutors in San Francisco-Bay Area, Math Tutors in Denver, Biology Tutors in Washington DC, ISEE Tutors in Boston, LSAT Tutors in San Francisco-Bay Area, ACT Tutors in Denver, French Tutors in Dallas Fort Worth
Popular Courses & Classes
ISEE Courses & Classes in Miami, GRE Courses & Classes in Boston, SAT Courses & Classes in Miami, GRE Courses & Classes in Los Angeles, ISEE Courses & Classes in San Diego, GMAT Courses & Classes in Denver, SSAT Courses & Classes in Houston, MCAT Courses & Classes in San Diego, MCAT Courses & Classes in San Francisco-Bay Area, Spanish Courses & Classes in Miami
Popular Test Prep
MCAT Test Prep in Seattle, SSAT Test Prep in San Francisco-Bay Area, GRE Test Prep in Seattle, SSAT Test Prep in Atlanta, GRE Test Prep in Boston, GRE Test Prep in New York City, GMAT Test Prep in San Diego, MCAT Test Prep in San Diego, SSAT Test Prep in Phoenix, ISEE Test Prep in Chicago
