11th Grade Sum & Difference Quizzes, Questions & Answers

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Top Trending Sum & Difference Quizzes

Explore the intriguing world of trigonometry in angles and their relationships. This quiz assesses your understanding of sum and difference identities, focusing on acute angles and their cosine and sine values, enhancing your...

Questions: 5 | Attempts: 457 | Last updated: Mar 20, 2025

Sample Question 1
Diketahui sudut A dan sudut B adalah sudut lancip. Jika cos A = 4/5 dan cos B = 24/25. Tentukanlah nilai cos(a+B) ?

1/5

2/5

3/5

4/5

Sample Question 2
Jika 0 < A < π, memenuhi A+B = (2/3)π dan sin A = 2sin B, maka tentukanlah (A – B) ?

π/3

π/2

π

2π/3

Exact Evaluation with Radians

Exact Evaluation With Radians

Are you ready to calculate exact values without the calculator? In this quiz, you’ll use sum and difference identities for sine, cosine, and tangent to evaluate tricky angles like 15°, 75°, and 105°....

Questions: 20 | Attempts: 10 | Last updated: Nov 25, 2025

Sample Question 1
Evaluate cos(π/12) exactly.

√3/2

(√6 + √2)/4

1/2

(√6 - √2)/4

Sample Question 2
Evaluate sin(75°) exactly.

(√6 - √2)/4

√3/2

(√6 + √2)/4

1/√2