# 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
If you’re reading this and stumbled upon this page to search for NCERT Class 11 Maths Solutions, then you’re at the right place. Class 11… 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