Pancyprian Examinations (Cyprus) · Mathematics
Sequences and complex numbers
10 practice questions, each with the answer and an explanation.
Practise Sequences and complex numbers now
Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 10 questions
- In an arithmetic sequence and . What is ?
- What is the sum to infinity of the geometric series ?
- What is the sum of the first odd positive integers, ?
- A geometric sequence has third term and sixth term . What is the first term?
- Write in the form .
- Solve over the complex numbers.
- Evaluate .
- What is the principal argument of the complex number ?
- The modulus of a complex number is and with . What is ?
- The sum of the first terms of an arithmetic sequence is . What is the common difference?
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