Trig 7.3 Solving Trig Equations

Trig 7.3 Solving Trig Equations

10th - 12th Grade

8 Qs

quiz-placeholder

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Trig 7.3 Solving Trig Equations

Trig 7.3 Solving Trig Equations

Assessment

Quiz

Mathematics

10th - 12th Grade

Hard

CCSS
HSF.TF.B.7

Standards-aligned

Created by

Julie C

Used 198+ times

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 tan x + 3=0\tan\ x\ +\ \sqrt{3}=0  

 x = 2π3+πnx\ =\ \frac{2\pi}{3}+\pi n  

 x=2π3+2πnx=\frac{2\pi}{3}+2\pi n  

 x=π3+πnx=\frac{\pi}{3}+\pi n  

 x=π3+2πnx=\frac{\pi}{3}+2\pi n  

Tags

CCSS.HSF.TF.B.7

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 3sin x + 1 = sin x3\sin\ x\ +\ 1\ =\ \sin\ x  

 x=7π6+2πn,   x = 11π6+2πnx=\frac{7\pi}{6}+2\pi n,\ \ \ x\ =\ \frac{11\pi}{6}+2\pi n  

 x=π6+2πn,   x = 5π6+2πnx=\frac{\pi}{6}+2\pi n,\ \ \ x\ =\ \frac{5\pi}{6}+2\pi n  

 x=4π3+2πn,    x=5π3+2πnx=\frac{4\pi}{3}+2\pi n,\ \ \ \ x=\frac{5\pi}{3}+2\pi n  

 x=π4+πnx=\frac{\pi}{4}+\pi n  

Tags

CCSS.HSF.TF.B.7

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 sin2x=3cos2x\sin^2x=3\cos^2x  
(Hint: use a Pythagorean identity to get it all in terms of sine or cosine.)

 x=π3+πn,   x=2π3+πnx=\frac{\pi}{3}+\pi n,\ \ \ x=\frac{2\pi}{3}+\pi n  

 x=π3+2πnx=\frac{\pi}{3}+2\pi n  

 x=2π3+2πnx=\frac{2\pi}{3}+2\pi n  

 x=all real numbersx=all\ real\ numbers  

Tags

CCSS.HSF.TF.B.7

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 tan2 x=3\tan^2\ x=3  

 x=π3+πn,   x=2π3+πnx=\frac{\pi}{3}+\pi n,\ \ \ x=\frac{2\pi}{3}+\pi n  

 x=π6+πn,    x=5π6+πnx=\frac{\pi}{6}+\pi n,\ \ \ \ x=\frac{5\pi}{6}+\pi n  

 x=π3+2πn,    x=2π3+πnx=\frac{\pi}{3}+2\pi n,\ \ \ \ x=\frac{2\pi}{3}+\pi n  

No solution

Tags

CCSS.HSF.TF.B.7

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 cosxsinx=2cosx\cos x\sin x=2\cos x  

 x=π2+πnx=\frac{\pi}{2}+\pi n  

 x=πnx=\pi n  

 x=π4+2πnx=\frac{\pi}{4}+2\pi n  

No Solution

Tags

CCSS.HSF.TF.B.7

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 2sinx1=02\sin x-1=0  

 x=π6+2πn,    x=5π6+2πnx=\frac{\pi}{6}+2\pi n,\ \ \ \ x=\frac{5\pi}{6}+2\pi n  

 x=π3+πn,     x = 2π3+πnx=\frac{\pi}{3}+\pi n,\ \ \ \ \ x\ =\ \frac{2\pi}{3}+\pi n  

 x=π6+2πn,     x=7π6+2πnx=\frac{\pi}{6}+2\pi n,\ \ \ \ \ x=\frac{7\pi}{6}+2\pi n  

No Solution

Tags

CCSS.HSF.TF.B.7

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find all solutions on the interval  [0, 2π)\left[0,\ 2\pi\right)   for  sinx2=cosx2\sin x-2=\cos x-2  

 x=π4,   x=5π4x=\frac{\pi}{4},\ \ \ x=\frac{5\pi}{4}  

 x=πx=\pi  

 x=π4x=\frac{\pi}{4}  

 x=0,   x=π2x=0,\ \ \ x=\frac{\pi}{2}  

8.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find all solutions on the interval  [0, 2π)\left[0,\ 2\pi\right)  for  sec2x  1=0\sec^2x\ -\ 1=0  

 x=0,   x=πx=0,\ \ \ x=\pi  

 x=π2,   x=3π2x=\frac{\pi}{2},\ \ \ x=\frac{3\pi}{2}  

 x=π4,   x=3π4x=\frac{\pi}{4},\ \ \ x=\frac{3\pi}{4}  

 x=0x=0  

Tags

CCSS.HSF.TF.B.7