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Pythagorean Identity Practice

Authored by Keh Ivy

Mathematics

9th - 12th Grade

CCSS covered

Used 32+ times

Pythagorean Identity Practice
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5 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Please select the correct solution 
cos 2 x + sin x=  

1
csc 2 x + sec 2 x
sinx
1 - sinx

Tags

CCSS.HSF.TF.C.8

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If  sinθ = 25\sin\theta\ =\ \frac{2}{5}   what is cosθ\cos\theta  if the angle  \theta  terminates in the first quadrant?

 215\frac{\sqrt{21}}{5}  

 2125\frac{21}{25}  

 155\frac{\sqrt{15}}{5}  

 22121\frac{2\sqrt{21}}{21}  

Tags

CCSS.HSF.TF.C.8

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If sinθ=34\sin\theta=-\frac{\sqrt{3}}{4}  and  θ\theta  terminates in the 4th quadrant, what is  cosθ\cos\theta  ?


 74\frac{\sqrt{7}}{4}  

 134\frac{\sqrt{13}}{4}  

 134-\frac{\sqrt{13}}{4}  

 74-\frac{\sqrt{7}}{4}  

Tags

CCSS.HSF.TF.C.8

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If  cosθ = 47\cos\theta\ =\ \frac{-4}{7}   , what are 

the values of  sinθ\sin\theta  ?

 ±37\pm\frac{3}{7}  

 ±337\pm\frac{33}{7}  

 ±337\pm\frac{\sqrt{33}}{7}  

 ±733\pm\frac{7}{33}  

Tags

CCSS.HSF.TF.C.8

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If   cosθ=22\cos\theta=\frac{\sqrt{2}}{2} and  3π2<θ<2π\frac{3\pi}{2}<\theta<2\pi    , what are the values of 


   sinθ\sin\theta and   tanθ\tan\theta ?

 sinθ=22\sin\theta=\frac{\sqrt{2}}{2}  and  tanθ=1\tan\theta=1  

 \sin\theta=\frac{\sqrt{2}}{2}  and  tanθ=1\tan\theta=-1  

 sinθ=22\sin\theta=-\frac{\sqrt{2}}{2}  and  tanθ=1\tan\theta=-1  

 \sin\theta=\frac{\sqrt{2}}{2}  and  tanθ=2\tan\theta=\sqrt{2}  

Tags

CCSS.HSF.TF.C.8

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