The trigonometric equation has a solution for
all real values
As we learnt in
Domains and Ranges of Inverse Trigonometric Functions -
For
Domain
Range
-
For (1) to have solution,
Thus
Also, for to be defined
. Thus solution is
None of the solution is correct.
Option 1)
all real values
Option 2)
Option 3)
Option 4)
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