Prove that 2cos^2theta (1+tan^2theta)=2
Answers
Answered by
0
Answer:
nkgckgchvhl
Step-by-step explanation:
iysutjfdugoyggid 1st i us do HD
Answered by
13
Step-by-step explanation:
2cos²©(1+tan²©)
2cos²©(1+sin²©÷cos²©)
2cos²©(sin²©+cos²©)/cos²©
2cos²©/cos²©
2
hope it is helpful
mark as brilliant
Similar questions