Advertisements
Advertisements
Question
If sec θ + tan θ + 1 = 0 then (sec θ – tan θ) = ?
Options
1
–1
0
2
MCQ
Advertisements
Solution
–1
Explanation:
sec θ + tan θ + 1 = 0
⇒ sec θ + tan θ = –1
(sec2θ – tan2θ) = 1
⇒ (sec θ + tan θ)(sec θ – tan θ) = 1
⇒ (–1) × (sec θ – tan θ) = 1
⇒ (sec θ – tan θ) = –1
shaalaa.com
Is there an error in this question or solution?
