If θ = 9π/4 and sin(θ) = √2/2, then find exact values for the following: cos(θ) = -√2/2 tan(θ) = -1 cot(θ) = -1 sec(θ) = -√2 csc(θ) = -√2 Enter a mathematical expression [more..]
Added by William G.
Step 1
Step 1: Reduce the angle modulo 2π: 9π/4 = 2π + π/4, so θ is coterminal with π/4. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Scott Stetson and 83 other Calculus 1 / AB educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Given tan θ = 4, use trigonometric identities to find the exact value of each of the following. (a) sec²θ (b) cot θ (c) cot(π/2 - θ) (d) csc²θ (a) sec²θ = (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) Enter your answer in the answer box and then click Check Answer.
Suzanne W.
Find the exact values for the following: If θ = 0, sec(θ) equals csc(θ) equals tan(θ) equals cot(θ) equals
Gregory H.
Given tan(t)=-2, t is in Quadrant IV. Give the exact value of each of the following.
Aparna S.
Recommended Textbooks
Calculus: Early Transcendentals
Thomas Calculus
600,000+
Students learning Calculus with Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD