A simple pendulum of string length 30 cm performs 20 oscillations in 10 s. The length of the string required […]
If the mean and the variance of the data are μ and 19 respectively, then the value of λ +
Let PQ be a chord of the hyperbola x^2/4 − y^2/b^2 = 1, perpendicular to the x-axis such that OPQ
Bag A contains 9 white and 8 black balls, while bag B contains 6 white and 4 black balls. One
Let A = {0, 1, 2, … , 9}. Let R be a relation on A defined by (x, y)
Consider two sets A = { x ∈ Z : |(|x − 3| − 3)| ≤ 1 } and B
Let a⃗ , b⃗ , c⃗ be three vectors such that a⃗ × b⃗ = 2(a⃗ × c⃗ ). If
If z = √3/2 + i/2, i = √−1, then (z^201 − i)^8 is equal to Q. If $$ z=frac{sqrt{3}}{2}+frac{i}{2},;
Let ∑ a_k = αn² + βn. If a₁₀ = 59 and a₆ = 7a₁, then α + β is
The number of ways in which 16 oranges can be distributed to four children such that each child gets at