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Multiple Choice Question with Only One Choice Correct
Which of the following remains constant during the motion of a projectile fired from a planet?
(a) kinetic energy
(b) momentum
(c) vertical component of velocity
(d) horizontal component of velocity

Chemistry

Complete the following reaction

Mathematics

Passage Based Question
Passage I
If m, n, r

N, then
^mC₀ ⁿC_r + ^mC₁ ⁿC_{r - 1} + ..... + ^mC_r ⁿC₀
= coefficient of x^r in (1 + x)^m (1 + x)ⁿ
= coefficient of x^r in (1 + x)^{m + n}
= ^{m + n}C_r
We can use similar techniques to evaluate product of binomial coefficients.
The value of r (0