Test Index

ICSE Class X Math 2022 Paper

Show Para  Hide Para 
Section-B
(Attempt any three questions from this Section.)
Question 2.
© examsnet.com
Question : 11 of 30
Marks: +1, -0
Prove that:
  11+sin⁡θ+11−sin⁡θ=2sec⁡2θ\;\frac{1}{1+\sin \theta}+\frac{1}{1-\sin \theta}=2\sec^2 \theta
Solution:     👈: Video Solution
© examsnet.com
Go to Question:
Prev Question
Next Question