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This mock test includes actual CBSE Class 12 Maths board exam questions from the year 2022 Set-3, helping students understand exam trends and practice real paper format
Duration
25 min
Questions
22
Marking
Negative
If the distance of the point (1, 1, 1) from the plane x-y+z+λ=0 is 5/√3, find the value(s) of λ.
Write the projection of the vector (b+c) on the vector a where a=2i-2j+k, b=i+2j-2k and c=2i-j+4k.
Find the general solution of the differential equation: dy/dx = (3e^(2x)+3e^(4x))/(e^(x)+e^(-x))
Two cards are drawn successively with replacement from a well shuffled pack of 52 cards. Find the probability distribution of the number of spade cards.
Find: ∫(dx)/(x^2-6x+13)
A pair of dice is thrown and the sum of the numbers appearing on the dice is observed to be 7. Find the probability that the number 5 has appeared on atleast one die.
The probability that A hits the target is 2/5 and the probability that B hits it, is 1/3. If both try to hit the target independently, find the probability that the target is hit.
Find the shortest distance between the following lines: r=3i+5j+7k+λ(i-2j+k) and r=(-i-j-k)+μ(7i-6j+k).
The two adjacent sides of a parallelogram are represented by vectors 2i-4j+5k and i-2j-3k. Find the unit vector parallel to one of its diagonals. Also, find the area of the parallelogram.
If a=2i+2j+3k, b=-i+2j+k and c=3i+j are such vectors that vector (a+λb) is perpendicular to vector c, then find the value of λ.
Find the particular solution of the differential equation x(dy/dx) - y = x²eˣ, given y(1)=0.
Find the general solution of the differential equation x(dy/dx) = y(log y - log x + 1).
Evaluate: ∫(-π/2)^(π/2) (sin|x| + cos|x|) dx
Find the distance of the point (1, 2, 9) from the point of intersection of the line r=4i+2j+7k+λ(3i+4j+2k) and the plane r⋅(i-j+k)=10.
Show that the lines: (1-x)/2 = (y-3)/4 = z/-1 and (x-4)/3 = (2y-2)/-4 = z-1 are coplanar.
Find the area of the region bounded by the curve 4x²=y and the line y=8x+12, using integration.
Find: ∫(x²+1)/((x-1)²(x+1)) dx
Find the value of λ for which the vectors 2i - λj + k and i + 2j - 3k are orthogonal.
Find the general solution of the differential equation: log(dy/dx) = ax+by
Find the area of the parallelogram whose adjacent sides are given by the vectors 3i + j + 2k and i - 2j + 4k.
Find the distance of the point (-2, 4, 5) from the line (x+3)/3 = (y-4)/5 = (z+8)/6.
A speaks truth in 75% of the cases and B in 80% of the cases. In what percentage of cases are they likely to contradict each other in stating the same fact?