Book: RS Aggarwal - Mathematics
Chapter: 4. Inverse Trigonometric Functions
Subject: Maths - Class 12th
Q. No. 1 of Exercise 4A
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Find the principal value of :
(i) 
(ii) 
(iii) 
(iv) tan-1 (1)
(v) 
(vi) 
(vii)
NOTE:
Trigonometric Table
(i) Let 
⇒ 
[ We know which value of x when placed in sin gives us this answer ]
∴ 
(ii) Let 
⇒ 
[We know which value of x when put in this expression will give us this result]
⇒ 
(iii) Let 
⇒ 
[We know which value of x when put in this expression will give us this result]
∴ 
(iv) Let 
⇒ 
[We know which value of x when put in this expression will give us this result]
∴ 
(v) Let 
⇒ 
[We know which value of x when put in this expression will give us this result]
∴ 
(vi) Let 
⇒ 
[We know which value of x when put in this expression will give us this result]
∴ 
(vii) Let 
⇒ 
[We know which value of x when put in this expression will give us this result]
∴ 
Chapter Exercises
More Exercise Questions
Evaluate 
Evaluate 
