# Important 1 Marks Questions for CBSE 11 Maths

**Important 1 Mark Question for CBSE Class 11 Maths** is provided here. Generally, students find a drastic change in the syllabus of class 11 in comparison to the previous year syllabus, especially in the subject of Mathematics. It requires a good knowledge of the basics to score well in the examination. Maths without practice is like life without water. One needs to practice Maths as much as possible to have a good understanding of the concepts.

Here, we have provided important 1 mark questions for class 11 students. Students preparing for CBSE Class 11th Maths Examination are advised to practice the given important 1 marks question for the CBSE Maths exam. At BYJU’S, we also provide important questions for class 11 Maths chapter wise to help students to score the best marks in the final examination.

## Important 1 Mark Questions for CBSE Class 11 Maths Exam

Solve the below given important 1 mark questions for CBSE class 11 Maths to score good marks in the final examination.

**Question 1-** Find the domain and range of the function \(f(x) = \frac{1}{\sqrt{5-x}}\).

**Question 2 –**Evaluate the value of \(cosec (-1410)^{\circ}\)

**Question 3- **Write the converse, if two lines are parallel, then they do not intersect in the same plane.

**Question 4- **If A = {1, 2, 3, 4}, B = {1, 3, 5, 7}, then find the relation “is less than” from A to B.

**Question 5- **Write the negation of the following statement: “sum of 2 and 3 is 6.”

**Question 6- **Evaluate- \(\lim\limits_{x \to 0} \left (\frac{\sin (2+x) – \sin (2-x)}{x} \right )\).

**Question 7- **Find the derivative of \(\sin ^{2}(2x)\) with respect to x.

**Question 8- **The foci of an ellipse are \((\pm 5,0)\) and eccentricity is -2. Find the equation of the ellipse.

**Question 9- **Describe the following set in roster form:

\({x \in N : x^{2} < 70}\)

**Question 10- **Two vertices of a triangle are (2, -6, 4), (4, -2, 3) and its centroid is (8/3, -1, 3). Find third vertex.

**Question 11- **If \(^{16}C_{r} = ^{16}C_{r+2}\), then find \(^{r}C_{4}\).

**Question 12- **Write the derivative of \(\log_{a}x \;\;(a > 0, a \neq 1)\) with respect to x.

**Question 13- **Write the equation of a line which is perpendicular to the line \(3x – 4y + 9 = 0\).

**Question 14- **How many elements has \(P(A),\), if \(A = \phi\)?

**Question 15- **Solve: \(5 – 2x/3 \leq x/6 – 5\)

**Question 16- ** Line through the points (-2, 6) and (4, 8) is perpendicular to the line through the points (8, 12) and (x, 24). Find the value of x.

**Also, check:** Important 6 Marks Questions For CBSE Class 11 Maths

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