FOR CHILDREN
PROBLEM # 1
Each child in a family has at least 3 brothers and 4 sisters. What is the smallest number of children the family might have?
FOR GROWNUPS
PROBLEM # 2
For 0<x<360 degrees, solve:
2 Tan(x) / (1 + (Tan(x))^2) = sqrt(3) / 2
-------------------------------------------------------------------------------------------------------------
Please send your solutions to anil@lokvani.com.
Use Problem Solutions M-072706
as the subject line. Please include your full name in the text of the
main message. Everyone with the right answer will be acknowledged in
the next issue of Lokvani.
Please do not post your solution in Post Comments. No credit will be given for solutions not sent to anil@lokvani.com.
If you need clarification on any problem, please contact anil@lokvani.com.
-------------------------------------------------------------------------------------------------------------
SOLUTIONS TO PROBLEMS ON 07/13/06
FOR CHILDREN
PROBLEM # 1
Simplify (6x^-1)^2 / (3^-3 x^2)^-1
SOLUTION
4/3.
FOR GROWNUPS
PROBLEM # 2
Determine the equation of the line tangent to the curve
y = cos(sqrtx) at x = (pi/4)^2.
SOLUTION
y = (-sqrt(2)/pi)*x + sqrt(2)/2 + pi*sqrt(2)/16.
Congratulations to Sandeep
Bansal, Ryan Bhattacharya, Sitaram Chandawarkar, Somnath Chattopadhyay,
Raghuram Manickam, Suryateja Rao, Arun Saigal and Gaurang Vaishnav, who were winners of the last set of puzzles.