Question 1 of 150
Which identity is correct for an acute angle q?
sin²q + cos²q = 1
○ sinq + cosq = 1
○ sin²q - cos²q = 1
○ tan²q + sin²q = 1
Show explanation
The fundamental Pythagorean identity is sin²q + cos²q = 1. — Examisthan.com
You've explored today's free questions 🎓
Want to keep going? Unlock more by watching an ad, or subscribe for unlimited access to every question.
Going a bit fast!
You're clicking through quickly — give it a short moment and the next question will load on its own.
Resuming in 15s...
You've completed all 150 questions! 🎉
Nice work — you've gone through every practice question in this set. Use Previous to review any of them again.