About Us Contact Us Help


Archives

Contribute

 

For The Mathematically Inclined

Anil Saigal
12/21/2007

FOR CHILDREN

PROBLEM # 1
Define the operation * by a*b = (a+b) b. What is (3*5) - (5*3)?

FOR GROWNUPS 

PROBLEM # 2
Find the sum of the values of x such that cos33x + cos35x =8 cos34x cos3x where x is measured in degrees and 100 < x < 200.

----------------------------------------------------------------------------------------------------------

Please send your solutions to anil@lokvani.com.

Use Problem Solutions M-122707 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.

-------------------------------------------------------------------------------------------------------------

Problem Solutions 12/13/07

PROBLEM # 1
In quadrilateral ABCD, angle b is a right angle, diagonal AC is perpendicular to CD. AB = 18, BC = 21 and CD = 14. What is the perimeter of ABCD?

Solution:
84.
 

Congratulations to Amisha Sisodiya, who was the winner of the last set of puzzles.



Bookmark and Share | Share your Comments

Comments :
Post a new message

In this Issue
Thought For The Day


Be always at war with your vices, at peace with your neighbors, and let each new year find you a better man. ~Benjamin Franklin
[more]

Thought For The Day
Our Voice And Yours


Lokvani wishes all its readers and sponsors a very Happy New Year !!!
[more]

Our Voice And Yours
Not The Same Old Desi New Years


"This is one of a kind New Year’s Eve celebration, certainly for our community in the New England area. And Rhode Island's gorgeous Narragansett Bay offers us the perfect opportunity to do something special and memorable."
[more]

Not The Same Old Desi New Years
Laasya Fest Performs Margam


Laasya Fest’, the first annual show of Smt. Sapna Krishnan’s dance school, Laasya School of Dance, Shrewsbury was held on December 8, 2007 at the Notre Dame Church in Worcester, MA. The theme of the show was ‘Margam’ (The Path).
[more]

Laasya Fest Performs Margam
South Asian Art - In Memory Of Prashant H. Fadia


In 2007 Lokvani started a new tradition to bring articles related to Indian art and architecture. From ancient temples to contemporary Indian art India's contribution to art is unquestionable. Here is PART I of the collection
[more]

South Asian Art - In Memory Of Prashant H. Fadia

You may also access this article through our web-site http://www.lokvani.com/




Home | About Us | Contact Us | Copyrights Help