Lesson Example Discussion Quiz: Class Homework |
Quiz Discussion |
Title: Trigonometry equations |
Grade: 10-a Lesson: S3-L5 |
Explanation: Let us discuss a few questions on this topic and review the answers to every question. |
Quiz: Discussion in Class
Problem Id | Problem | Options |
---|---|---|
Steps 1 |
Solve the equation: \$sin2x + 2 cosx sinx = \sqrt3\$. |
A) \$ pi/3, pi/6 \$ B) \$ pi/2, 0\$ C) \$ pi/4, pi/2 \$ D) \$ 2pi, pi \$ |
Steps 2 |
Solve the equation exactly: \$3sinθ + 3 = 2cos^2(θ)\$ , 0 ≤ θ <2π. |
A) \$(pi)/6 , (11pi)/6, (3pi)/2\$ B) \$(-7pi)/6 , (-11pi)/6, (3pi)/2\$ C) \$(pi)/6 , (11pi)/6, (pi)/2\$ D) \$(7pi)/6 , (11pi)/6, (3pi)/2\$ |
Steps 3 |
Solve exactly: \$sin(2x) = 1/2\$ on (0,2π). |
A) \$(13pi)/12, (12pi)/13\$ B) \$(13pi)/12, (17pi)/12\$ C) \$(13pi)/12, (12pi)/17\$ D) \$(12pi)/13, (17pi)/12\$ |
Steps 4 |
Determine the exact solutions for the equation \$ 2cos^2θ - 3cosθ + 1 = 0\$ within the interval \$0 le θ < 2π \$. |
A) \$ pi, pi/6, (7pi)/3 \$ B) \$ pi/2, pi/4, (3pi)/4 \$ C) \$ pi/2, pi/4, (3pi)/4, (5pi)/4 \$ D) \$ 0, 2pi, pi/3, (5pi)/3 \$ |
Steps 5 |
Identify the general solution to the equation: 3(tan(2x) - 4) + 9 = 0. |
A) \$ x = pi + npi\$ B) \$ x = pi/2 + (3npi)/2\$ C) \$ x = pi/8 + (npi)/2\$ D) \$ x = pi/3 + (npi)/3\$ |
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