Trigonometric Identities Quiz

10 Questions | By Oxyzen28 | Last updated: Oct 3, 2022 | Total Attempts: 5049

Questions

Settings

Create your own Quiz

Trigonometry is one of the core branches of Mathematics dealing with angles and calculations. This Trigonometric Identities quiz will gauge your understanding of the complex and interesting topic. Once you master Trignometry, you no longer fear Maths. This quiz has comprehensive coverage of easy, medium, to hard-level questions. So let's see how prepared you are to attempt these questions. If you find the quiz helpful, do share it with your friends. All the best!.

Questions and Answers

1.

Which of these is the identity of Sin 2x?
- A.
  
  Cos^2 x + Sin^2 x
- B.
  
  2SinxCosx
- C.
  
  SinxCosx + CosxSin x
- D.
  
  Sin^2 x
- E.
  
  Sin x + Sinx
2.

Is Sec2x = 1 an identity? ( 1 - Sinx )( 1 + Sinx)
- A.
  
  True
- B.
  
  False
- C.
  
  Maybe
- D.
  
  It depends
3.

True or false, Tanx + TanySecx = Tan ( x + y ) ? Cosx + TanySinx
- A.
  
  True
- B.
  
  False
- C.
  
  Maybe
- D.
  
  It depends
4.

Is Sin^2 x + Sin^2 ( x + y ) + 2SinxCosxSin ( x + y ) = Sin^2 y ?
- A.
  
  True
- B.
  
  False
- C.
  
  Maybe
- D.
  
  It depends
5.

What is ( Sinx + Cosy )^2 ?
- A.
  
  Sin^2x + Cos^2x
- B.
  
  1
- C.
  
  2SinxCosy
- D.
  
  SinxCosy + CosxSiny
- E.
  
  Sin^2x + 2SinxCosy + Cos^2y
6.

What is Cos2x + Sec2x ?
- A.
  
  Cos^2x
- B.
  
  2CosxSecx
- C.
  
  1
- D.
  
  Tan^2 2x
- E.
  
  Tan^2 x
7.

What is Sinx + Cosx + 1 ? TanxCotx
- A.
  
  1
- B.
  
  Sinx + Cosx
- C.
  
  Cos^2 xSin^2 x
- D.
  
  2
- E.
  
  ______1________ SecxCscx
8.

Is 2Sec^2 xCos^2 x = 2 an identity?
- A.
  
  True
- B.
  
  False
- C.
  
  Maybe
- D.
  
  It depends
9.

Which of the following is not an identity with Cos2x?
- A.
  
  1 - Sin^2 x
- B.
  
  2Cosx - 1
- C.
  
  Cos^2 x - Sin^2 x
- D.
  
  1 - 2Sin^2 x
10.

Is Sinx + Cosx = 1 an identity?
- A.
  
  True
- B.
  
  False
- C.
  
  Maybe
- D.
  
  it depends