HSC Arts (English Medium) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

Find the value of k, if the following equations represent a pair of line:

x² + 3xy + 2y² + x - y + k = 0

Find p and q, if the equation 2x² + 8xy + py² + qx + 2y - 15 = 0 represents a pair of parallel lines.

Equations of pairs of opposite sides of a parallelogram are x² - 7x + 6 = 0 and y² − 14y + 40 = 0. Find the joint equation of its diagonals.

Find the separate equation of the line represented by the following equation:

10(x + 1)² + (x + 1)(y - 2) - 3(y - 2)² = 0 

ΔOAB is formed by the lines x² - 4xy + y² = 0 and the line AB. The equation of line AB is 2x + 3y - 1 = 0. Find the equation of the median of the triangle drawn from O.

Find the coordinates of the points of intersection of the lines represented by x² − y² − 2x + 1 = 0

Find k, if the slopes of lines given by kx² + 5xy + y² = 0 differ by 1.

Check the validity of the Rolle’s theorem for the following functions : f(x) = x² – 4x + 3, x ∈ [1, 3]

Check the validity of the Rolle’s theorem for the following functions : f(x) = e^–x sin x, x ∈ [0, π].

Check the validity of the Rolle’s theorem for the following functions : f(x) = 2x² – 5x + 3, x ∈ [1, 3].

Check the validity of the Rolle’s theorem for the following functions : f(x) = sin x – cos x + 3, x ∈ [0, 2π].

Check the validity of the Rolle’s theorem for the following function:

f(x) = x², if 0 ≤ x ≤ 2

= 6 – x, if 2 < x ≤ 6.

Check the validity of the Rolle’s theorem for the following function:

f(x) = `x^(2/3), x ∈ [ - 1, 1]`

Given an interval [a, b] that satisfies hypothesis of Rolle's theorem for the function f(x) = x⁴ + x² – 2. It is known that a = – 1. Find the value of b.

Verify Rolle’s theorem for the following functions:

f(x) = sin x + cos x + 7, x ∈ [0, 2π]

Verify Rolle’s theorem for the following functions  : f(x) = `sin(x/2), x ∈ [0, 2pi]` 

Verify Rolle’s theorem for the following functions : f(x) = x² – 5x + 9, x ∈ 1, 4].

If Rolle's theorem holds for the function f(x) = x³ + px² + qx + 5, x ∈ [1, 3] with c = `2 + (1)/sqrt(3)`, find the values of p and q.

If Rolle’s theorem holds for the function f(x) = (x –2) log x, x ∈ [1, 2], show that the equation x log x = 2 – x is satisfied by at least one value of x in (1, 2).

The function f(x) = `x(x + 3)e^(-(x)/2)` satisfies all the conditions of Rolle's theorem on [– 3, 0]. Find the value of c such that f'(c) = 0.