Grade 11 Maths · Trigonometry
Find where trig expression is undefined
Find the angles where a trig expression has no value, for example tan x is undefined at 90°, and 1/sin x is undefined when sin x = 0.
- past paper questions use it
- 3 past paper questions use it
- videos
- 3 videos
Learn it: find where trig expression is undefined
Pick one and watch it, then try the questions below. Videos load only when you tap play.
Now try it on a real exam question
No sign-up. Takes 3 minutes.
Question 8.2 · March 2023 · Provincial · 7 marks
Trigonometric Identities
8.2 For which values of in the interval is the identity not defined?(7)
Work it out on paper first. Then mark yourself with the official memo, one tick at a time.
More past paper questions: find where trig expression is undefined
Work each one out first, then open the memo and check every tick.
3. Question 7.2.2 · March 2024 · Paper 1 · Provincial · 3 marks
7.2 Given:7.2.2 For which value(s) of in the interval will the above expression be undefined?(3)Show the memo (2 ticks)Memo
- ✓Set denominator to zero
- ✓Find x-values in range OR
2 marks · Find solutions in an interval
- ✓
Free on Android
Know exactly which skill is costing you marks.
Mark past papers tick by tick in the NavyBlue app. It remembers every mark you lose, shows you the skills to fix first, and picks your next questions.
Get NavyBlue free on Google Play
