CBSE Class 11 Quadratic Equations — practice questions
52 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 Quadratic Equations in the app →The relationship between degree measure and radian measure is:In a circle of radius r, an arc of length l subtends a central angle θ (in radians) such that:For all real x, the value of sin²x + cos²x is:Convert 40°20′ to radian measure.A wheel makes 360 revolutions in one minute. Through how many RADIANS does it turn in one second?The minute hand of a watch is 1.5 cm long. The distance the tip moves in 40 minutes is (use π = 3.14):The radius of a circle where a central angle of 60° intercepts an arc of length 37.4 cm (use π = 22/7) is:If two arcs of equal length subtend angles of 65° and 110° at the centres of two circles, the ratio of the radIf cos x = -3/5 and x lies in the THIRD quadrant, then sin x equals:If cot x = -5/12 and x lies in the SECOND quadrant, then sin x equals:In which quadrant is tan x POSITIVE while sin x is NEGATIVE?The DOMAIN of y = tan x is:sin(2nπ + x) equals (for any integer n):The RANGE of y = sec x is:At which of the following x-values is cos x equal to zero?The value of cos(-π/3) is:6 radians converts to approximately:An angle of $90^\circ$ in radians is:The value of $ in(\pi/4)$ is:The identity $ in 2A$ equals:The general solution of $\cos x = 1/2$ is:The angle 90° in radians is:The fundamental Pythagorean identity in trigonometry is:The exact value of cos 60° is:The double angle formula sin 2A equals:The general solution of sin θ = 1/2 is:The principal value range of sin⁻¹(x) is:In a triangle ABC, the Law of Sines states:The Law of Cosines, given sides a, b and included angle C, gives the third side c as:The function f(x) = tan x has vertical asymptotes at:The symbol i is defined as a solution of the equation:A number of the form a plus ib with real a and b is called:In the complex number a plus ib, the number a is called the:In the complex number a plus ib, the number b is called the:Two complex numbers are equal when their real parts match and their:The non-negative real number written with bars around z is its:Changing a plus ib into a minus ib gives the complex:The plane in which complex numbers are plotted is the:In the Argand plane, the x-axis is called the:In the Argand plane, the y-axis is called the:In the Argand plane, the modulus of a complex number is its distance from the:Quadratics were earlier solved over the reals when the discriminant was:Square roots of negative real numbers exist in the set of:With a negative discriminant, quadratic solutions are found in the set of:The theorem stated without proof about roots is the fundamental theorem of:The Fundamental Theorem of Algebra says a polynomial equation has at least:A polynomial equation of degree n has how many roots?The symbol for the square root of minus one was first introduced by:Hamilton regarded a complex number as an ordered pair of:W. R. Hamilton lived from 1805 until:Hamilton gave his definition of complex numbers around the year:A quadratic equation has real coefficients a, b, c with a being: