Proving trigonometric identities

Sample Proving trigonometric identities questions

A few of the 4 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.

1. Question 12 marksGrade 7
   Prove that $\sin\theta \sec\theta = \tan\theta$. [2]
   Show the worked solution

   $\sin\theta \sec\theta = \sin\theta \times \dfrac{1}{\cos\theta} = \dfrac{\sin\theta}{\cos\theta} = \tan\theta$

What are the common mistakes in Proving trigonometric identities?

When a pupil makes one of these on Revision Workshop, the marking engine names the mistake and explains it, instead of just marking the answer wrong.

• Adds two denominators together to form a new denominator, instead of correctly combining the fractions over their common denominator.

  Combining $\dfrac{\sin\theta}{\cos\theta}+\dfrac{\cos\theta}{\sin\theta}$

Quick answers about Proving trigonometric identities

How many Proving trigonometric identities practice questions are there?

There are 4 self-marking Additional Maths Maths questions on Proving trigonometric identities, written for Cambridge IGCSE Additional Maths (0606) across Single tier. Each one is marked instantly and has a full worked solution.

Do I need an account to practise Proving trigonometric identities?

No. You can start practising Proving trigonometric identities straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.