# Tag Archives: NCERT Solutions Class-11

Question 13. Show that the equation of the line passing through the origin and making an angle θ with the line y = mx +… Read More
Question 1. Find the values of k for which the line (k – 3)x – (4 – k2)y + k2 – 7k + 6 =… Read More
NCERT Solutions for Class 11 Maths presents the solution of the respective grade’s NCERT textbook in a very precise and lucid manner keeping the objective… Read More
Find the derivative of the following functions (it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero… Read More
Question 1: Find the derivative of the following functions from first principle: (i) -x Solution: f(x) = -x f(x+h) = -(x+h) From the first principle,… Read More
Question 1. Find the derivative of x2 – 2 at x = 10. Solution: f(x) = x2 – 2 f(x+h) = (x+h)2 – 2 From… Read More
Question 17. If the 4th, 10th and 16th terms of a G.P. are x, y, and z, respectively. Prove that x, y, z are in… Read More
Question 1.  Find the 20th and nth terms of the G.P 5/2, 5/4, 5/8, … Solution: According to the question G.P: 5/2, 5/4, 5/8, …… Read More
Question 15: cot 4x (sin 5x + sin 3x) = cot x (sin 5x – sin 3x) Solution:  Taking LHS in consideration, we get =… Read More
Prove that: Question 1: sin2+cos2– tan2= Solution:  Taking LHS in consideration, we get = sin2+cos2– tan2 Substituting the values, = =– 1 = Hence, LHS… Read More
Evaluate the following limits in Exercises 1 to 22. Question 1:  Solution: In , as x⇢3  Put x = 3, we get  = 3+3  = 6… Read More
Question 17: Solution: In, as x⇢0 As we know, cos 2θ = 1-2sin2θ Substituting the values, we get = Put x = 0, we get… Read More
Question 11. Prove that the line through the point (x1, y1) and parallel to the line Ax + By + C = 0 is A… Read More
Question 1. Reduce the following equations into slope – intercept form and find their slopes and the y – intercepts. (i) x + 7y =… Read More
Question 1. Find a, b, and n in the expansion of (a + b)n if the first three terms of the expansion are 729, 7290,… Read More