cos15 - sin 15
CBSE, JEE, NEET, CUET
Question Bank, Mock Tests, Exam Papers
NCERT Solutions, Sample Papers, Notes, Videos
Posted by Monu Ray 3 years, 11 months ago
- 1 answers
Related Questions
Posted by Ananya Sv 8 months, 3 weeks ago
- 1 answers
Posted by Sabin Sultana 8 months, 2 weeks ago
- 0 answers
Posted by Manoj Thakur 8 months, 3 weeks ago
- 0 answers
Posted by Ashish Chaudhary 8 months, 2 weeks ago
- 1 answers
Posted by Sethpoulou Apoulou 8 months, 4 weeks ago
- 0 answers
Posted by Gurleen Kaur 8 months, 3 weeks ago
- 0 answers
Posted by Sana Dharwad 8 months, 2 weeks 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
Account Deleted 3 years, 11 months ago
Write it as cos (45-30) - sin(45-30)
Now open both the functions as
= cos 45 cos 30 + sin 45 sin 30 - sin 45 cos 30 + sin 30 cos 45
Putting the values as learned in class X
1√2∗√32+1√2∗12−1√2∗√32+12∗1√2
Solving we get
= 1√2
Answer.
4Thank You