Question

TT
4. (i) sin- x + cos-l x =
2,* € (-1, 1]
(ii) tan-'x + cot- x =
TO
y r ER
2
T
(iii) cosec-r + sec- r =
2
Ixl > 1
TT
-​

Answer 1

Step-by-step explanation:

TT

4. (i) sin- x + cos-l x =

2,* € (-1, 1]

(ii) tan-'x + cot- x =

TO

y r ER

2

T

(iii) cosec-r + sec- r =

2

Ixl > 1

TT

-