Deepak bhai ye anwer nahi hai …
CBSE, JEE, NEET, CUET
Question Bank, Mock Tests, Exam Papers
NCERT Solutions, Sample Papers, Notes, Videos
Posted by Unique #Seraj Ali ??? 4 years, 7 months ago
- 4 answers
Gaurav Seth 4 years, 7 months ago
Solution:
Let Ф = π/8
2Ф = π/4
tan 2Ф = 1 = 2 tan Ф / [ 1 - tan² Ф ]
1 - tan² Ф = 2 tan Ф
tan² Ф + 2 tan Ф - 1 = 0
tan Ф = 1/2 [ -2 +- √(4 +4) ] = -1 +- √2
tan π/8 is > 0
Therefore, tan π/8 = √2 - 1
Related Questions
Posted by Sethpoulou Apoulou 8 months, 2 weeks ago
- 0 answers
Posted by Nitin Kumar 7 months, 2 weeks ago
- 1 answers
Posted by Ananya Sv 8 months, 1 week ago
- 1 answers
Posted by Manoj Thakur 8 months, 1 week ago
- 0 answers
Posted by Gurleen Kaur 8 months, 1 week ago
- 0 answers
Posted by Sabin Sultana 8 months ago
- 0 answers
Posted by Sana Dharwad 8 months ago
- 0 answers
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Manisha Dhibar 4 years, 7 months ago
0Thank You