Questions and answers by

Abhishek Ranjan

Questions (8)

A sequence {ai}is defined by the recurrence relation an=40−4an−1 with a0=−4. There exists real valued constants r,s and t
1. 0 answers
2. 492 views
Adventurous Mary tries a new game: she puts on her rollerblades and throws the ball towards the wall, lets it bounce off,
1. 0 answers
2. 480 views
Find the minimum possible value of2cos4θ+8cos3θ+32cos2θ+56cosθ+100
1. 1 answer
2. 417 views
A monic polynomial f(x) of degree four satisfies f(1)=10, f(2)=20, and f(3)=30. Determinef(12)+f(−8)−19000.
1. 3 answers
2. 936 views
A fair coin is flipped 3 times. The probability of getting exactly two heads, given that at least one flip results in a head,
1. 2 answers
2. 558 views
Fortune teller's use crystal balls to see the future. A fortune teller has a crystal ball with an index of refraction of 1.5 and
1. 0 answers
2. 433 views
The galaxies in the universe are all flying away from each other. The speeds of nearby galaxies are proportional to the distance
1. 0 answers
2. 912 views
A 15 kg, 1m wide door which has frictionless hinges is closed but unlocked. A 400 g ball hits the exact middle of the door at a
1. 1 answer
2. 551 views

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