(1/9)^(−3/2) = ?
- 27
- 1/27
- ±27
- ±1/27
Show answer and explanation
Answer: A. 27
(1/9)^(−3/2) = 9^(3/2) = (9^(1/2))³ = 3³ = 27.
Practise 346 real Federal Board Mathematics questions from 2023 to 2026. See an answer and explanation as soon as you answer.
Matric Mathematics is examined by the Federal Board of Intermediate and Secondary Education (FBISE) in the annual examinations, for 9th and 10th class. Tayyari Karo has real questions from 2023 to 2026, covering topics such as Sets and Functions, Basic Statistics, Introduction to Trigonometry, Theory of Quadratic Equations and Chords of a Circle. Working through real papers is the fastest way to learn the paper pattern and the way questions are worded.
135 of the questions are multiple choice and marked instantly; the rest are short and long questions with a model answer. The answers are prepared by Tayyari Karo, since we could not find an official marking scheme.
These are real past-paper questions. Think of your answer first, then open the explanation.
(1/9)^(−3/2) = ?
Answer: A. 27
(1/9)^(−3/2) = 9^(3/2) = (9^(1/2))³ = 3³ = 27.
For sets A = {a,b} and B = {1,2} then R = {(a,1),(b,2)} is a subset of:
Answer: B. A×B
Each pair has its first element from A and second from B, so R ⊆ A×B.
Factorization of 4a² − 12ab + 9b² is:
Answer: A. (2a−3b)²
4a²−12ab+9b² = (2a)² − 2(2a)(3b) + (3b)² = (2a−3b)².
Simplify the expression: [(x²y⁻³z⁴)⁵ × (x⁻⁴y⁷z⁻²)³]^(1/2)
(x²y⁻³z⁴)⁵ = x¹⁰y⁻¹⁵z²⁰
(x⁻⁴y⁷z⁻²)³ = x⁻¹²y²¹z⁻⁶
Product = x^(10−12) y^(−15+21) z^(20−6) = x⁻²y⁶z¹⁴
Raising to power 1/2: x⁻¹y³z⁷ = y³z⁷/x
Number of questions available for each exam session.
| Session | 9th class | 10th class |
|---|---|---|
| 2026 Annual | 39 | 39 |
| 2025 1st Annual | 39 | 39 |
| 2025 2nd Annual | 39 | 39 |
| 2024 Annual | 39 | 39 |
| 2023 Annual | – | 34 |
Yes. Every question comes from a Federal Board (FBISE) Mathematics paper from 2023 to 2026, and each one shows the session it came from.
No. We could not find an official FBISE marking scheme for these papers, so the answers and explanations are written by Tayyari Karo for practice. Check anything important with your teacher or textbook.
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9th and 10th class. The table below shows how many questions we have for each exam session.