Open In App
Related Articles

Aptitude | Trigonometry & Height and Distances | Question 3

Improve
Improve
Improve
Like Article
Like
Save Article
Save
Report issue
Report

If tan (x+y) tan (x-y) = 1, then find tan (2x/3)?

(A)

1/√3

(B)

1/2

(C)

1/√2

(D)

2/√3



Answer: (A)

Explanation:

tanA = cotB, 
tanA*tan B = 1
So, A +B = 90o
(x+y)+(x-y) = 90o, 2x = 90o , x = 45o
Tan (2x/3) = tan 30o = 1/√3



Quiz of this Question
Please comment below if you find anything wrong in the above post

Last Updated : 28 Jun, 2021
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads