Painless Trigonometry: (December 14 – December 21, 2013)


Sum of tangents


tan(x) + tan(y) = 4

cot(x) + cot(y) = 5

Find the value of  tan(x+y)

Comment your answer below.

 Note: I am the only one who can see your comments. You are only allowed to comment your answer once. Comments will be revealed next week December 21, 2013 (Philippines Time). You can also send your answer to .  Please DON’T FORGET TO INCLUDE YOUR NAME AND THE NAME OF YOUR SCHOOL. Names of those who commented the correct answer will be posted in this page immediately after the answer has been reviewed. Happy Solving!

Click here for old problems

1. Arsh Singh.

2. Muthu Krishna.Kle college , Bengaluru

3. Jeffry Robles, University of the Philippines – Diliman

4. K.Rahul Mohideen

5. Spandan B, Pace Jr. Science College, India

6. Sebastian Pimber. Colombia

7. Kennard Ong Sychingping. De La Salle University

8.Jhay Dela Cruz. PUP-Taguig

9. Kenny Wong, Jurong Junior College, Singapore

10. Erick Ocampo- Manila Science High School

11. Jia Syuen- SMJK Sam Tet, Malaysia


Blogger and a Math enthusiast. Has no interest in Mathematics until MMC came. Aside from doing math, he also loves to travel and watch movies.

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