# Important 1 Marks Questions for CBSE 11 Maths

Students find a drastic change in the syllabus of class 11th 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.

We provide students of class 11th with marks wise important question to have a good practice of the subject. Students preparing for CBSE Class 11th Maths Examination are advised to practice the given important 1 marks question for CBSE Maths exam.

Important 1 Marks Questions for Class 11 Maths CBSE Board are as follows-

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 same plane.

Question 4- If a = 11, 2, 3, 41, B, 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.