AP Inter 1st Year Maths Answer Key 2026 Out (Unofficial) – Check the Maths Solutions Here

The AP Inter 1st Year Maths Answer Key 2026 has been released unofficially following the Intermediate Public Examination conducted by the Board of Intermediate Education, Andhra Pradesh (BIEAP).

Students who appeared for the exam can use the answer key to verify their responses, calculate expected marks, and ease anxiety while awaiting official results.

Both unofficial keys (prepared by subject experts from coaching institutes and education portals) and potential official updates are available in PDF format, often with question-wise solutions.

AP Inter 1st Year Maths Answer Key 2026 – Overview

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AP Inter 1st Year Maths Unofficial Answer Key 2026

Section A Answer Key

• Q1. The domain of the function 1x2−25\frac{1}{\sqrt{x^2-25}}x2−25​1​ is:
  Answer: (−∞,−5)∪(5,∞)(-∞, -5) ∪ (5, ∞)(−∞,−5)∪(5,∞)

• Q2. The value of −25×−9\sqrt{-25} \times \sqrt{-9}−25​×−9​ is:
  Answer: −15

• Q3. If 12Cs+1=12C2s−5^{12}C_{s+1} = ^{12}C_{2s-5}12Cs+1​=12C2s−5​, the value of s is:
  Answer: 6

• Q4. The coefficient of x8y10x^8y^{10}x8y10 in the expansion of (x+y)18(x+y)^{18}(x+y)18 is:
  Answer: 18C8^{18}C_818C8​

• Q5. XOZ-plane divides the line joining the points (2,3,1) and (6,7,1) in the ratio:
  Answer: −3 : 7

• Q6. If P(A)=0.5P(A)=0.5P(A)=0.5, P(B)=0.3P(B)=0.3P(B)=0.3 and A and B are mutually exclusive, then P(A′∩B′)P(A'∩B')P(A′∩B′) is:
  Answer: 0.2

• Q7. Elements of the set C={x:xC = \{x : xC={x:x is an integer, x2≤4}x^2 ≤ 4\}x2≤4}:
  Answer: {−2, −1, 0, 1, 2}

• Q8. Value of sin⁡(−11π/3)\sin(-11π/3)sin(−11π/3):
  Answer: √3 / 2

• Q9. Sum to infinity of GP 1,13,19,…1, \frac{1}{3}, \frac{1}{9}, …1,31​,91​,…:
  Answer: 3/2

• Q10. Equation of the line passing through (-4,3) with slope −1/2:
  Answer: x − 2y + 10 = 0

• Q11. Length of the transverse axis of hyperbola x2−4y2=4x^2 − 4y^2 = 4x2−4y2=4:
  Answer: 4 units

• Q12. Derivative of x2−2x^2 − 2x2−2 at x = 10:
  Answer: 20

Section B Answer Key

• Q13. For A={1,2,{3,4},5}A = \{1,2,\{3,4\},5\}A={1,2,{3,4},5}, is the statement {3,4}∈A\{3,4\} ∈ A{3,4}∈A incorrect?
  Answer: No, it is correct because {3,4} is an element of set A.

• Q14. If P={a,b,c}P = \{a,b,c\}P={a,b,c} and Q={r}Q = \{r\}Q={r}:

  • P×Q={(a,r),(b,r),(c,r)}P×Q = \{(a,r),(b,r),(c,r)\}P×Q={(a,r),(b,r),(c,r)}

  • Q×P={(r,a),(r,b),(r,c)}Q×P = \{(r,a),(r,b),(r,c)\}Q×P={(r,a),(r,b),(r,c)}
    Answer: The two products are not equal.

• Q15. A wheel makes 360 revolutions per minute. Radians turned in one second:
  Answer: 12π radians

• Q16. Complex number (15+3i)3(\frac{1}{5}+3i)^3(51​+3i)3 in a + ib form:
  Answer: −674/125 − 108/5 i

• Q17. Number of 4-digit numbers formed using digits 1–9 without repetition:
  Answer: 3024

• Q18. Expansion of (x3+1x)5(\frac{x}{3} + \frac{1}{x})^5(3x​+x1​)5:
  Answer:
  x5243+5x381+10x27+109x+53x3+1x5\frac{x^5}{243} + \frac{5x^3}{81} + \frac{10x}{27} + \frac{10}{9x} + \frac{5}{3x^3} + \frac{1}{x^5}243x5​+815x3​+2710x​+9x10​+3x35​+x51​

• Q19. Parabola with vertex (0,0) passing through (2,3) with axis along x-axis:
  Answer: y² = 4.5x (or 2y² = 9x)

• Q20. Distance between (5, −1, 7) and (x, 5, 1) is 9 units:
  Answer: x = 2 or x = 8

• Q21. Evaluate lim⁡x→0x1+x−1\lim_{x→0} \frac{x}{1+x} - 1limx→0​1+xx​−1:
  Answer: 1/2

• Q22. Mean deviation about the mean for data 4, 7, 8, 9, 10, 12, 13, 17:
  Answer: 3

• Q23. Given

  • U={1,2,3,4,5,6}U = \{1,2,3,4,5,6\}U={1,2,3,4,5,6}

  • A={2,3}A = \{2,3\}A={2,3}

  • B={3,4,5}B = \{3,4,5\}B={3,4,5}

  Answers:

  • A′={1,4,5,6}A' = \{1,4,5,6\}A′={1,4,5,6}

  • B′={1,2,6}B' = \{1,2,6\}B′={1,2,6}

  • A′∩B′={1,6}A' ∩ B' = \{1,6\}A′∩B′={1,6}

• Q26. Temperature between 68°F and 77°F. Convert to Celsius using F=95C+32F = \frac{9}{5}C + 32F=59​C+32:
  Answer: 20°C < C < 25°C

• Q30. Ellipse 100x2+400y2=1100x^2 + 400y^2 = 1100x2+400y2=1:

  • Vertices: (0, ±20)

  • Foci: (0, ±10√3)

  • Major Axis Length: 40

  • Minor Axis Length: 20

  • Eccentricity: 23\frac{2}{3}32​

• Q32. If P(A)=0.54P(A)=0.54P(A)=0.54, P(B)=0.69P(B)=0.69P(B)=0.69, P(A∩B)=0.35P(A∩B)=0.35P(A∩B)=0.35:
  Answer: P(A∪B)=0.88P(A∪B) = 0.88P(A∪B)=0.88

AP Inter 1st Year Maths Exam Pattern & Marking Scheme

How to Download AP Inter 1st Year Maths Answer Key 2026

• Visit the official website of the Board of Intermediate Education Andhra Pradesh (BIEAP) at bie.ap.gov.in.

• Navigate to the “Latest Updates”, “Examinations”, or “Student Services” section.

• Search for the link titled “AP Inter 1st Year Maths Answer Key 2026” or related notifications for Intermediate Public Examination 2026.

• Click on the relevant Maths answer key link (if available) to open the PDF.

• Download and save the file, then compare it with your question paper set.

How to Calculate Marks Using the Unofficial Answer Key

The Maths theory exam is out of 75 marks, with section-wise distribution (e.g., short questions at 2-4 marks, long ones higher).

Generic method to estimate marks:

• Count the total number of correct answers/responses in each section.

• Multiply correct answers by the marks per question (e.g., 2 marks in Section A, 4 marks in Section B, higher in Section C).

• Add all section-wise marks to get your expected score out of 75.

Expected Marks = (Correct answers in Part A × marks per question) + (Correct answers in Part B × marks per question) + (Correct answers in Part C × marks per question).

AP Inter 1st Year Maths Exam Analysis 2026

Early reports indicate the overall difficulty level was moderate, with the paper aligned to the prescribed syllabus and testing conceptual understanding, problem-solving, and time management.

Question paper pattern: Sections A, B, and C with objective, short-answer, and long-answer questions.

Topic-wise coverage: Algebra, trigonometry, coordinate geometry, calculus basics, etc.

Distribution:

• Easy questions: From standard, frequently repeated concepts.

• Moderate questions: Required multi-step solutions or conceptual clarity.

• Difficult questions: Lengthy derivations or tricky problem-solving.

The paper was described as manageable but somewhat lengthy in parts, with a good attempt potentially covering most questions for strong scores.

AP Inter 1st Year Result 2026 (Expected)

The AP Inter 1st Year Results 2026 will be announced by BIEAP on the official website bie.ap.gov.in. Results are typically declared a few weeks after the exams conclude (around late April or May, based on past trends—check the site for exact updates).

Steps to check results:

• Visit bie.ap.gov.in.

• Click on the “AP Inter 1st Year Result 2026” link.

• Enter your hall ticket number and other required details.

• View, download, and print the marks memo.

Disclaimer:

The answer key provided above is for reference purposes only and may be based on unofficial sources or expert analysis. The official answer key released by the Board of Intermediate Education Andhra Pradesh (BIEAP) should be considered final. Students are advised to verify answers through the official website bie.ap.gov.in for accurate information.