Login

prove that 
tan1* tan2 * tan3* tan4------- tan89  =1

Here is the link for the answer to your query:
https://www.meritnation.com/ask-answer/question/the-value-of-tan1-tan2-tan3-tan89-and-y-plz-answ/introduction-to-trigonometry/801842  

  • 0
View Full Answer
tan 89 can be written as cot 1
cot 1 can be written as 1/tan 1
all the terms will cancel out each other remaining tan45
​and tan 45 is 1
answer is 1

 
  • 7
What are you looking for?