Find the values of each of the expressions in Exercises 16 to 18.
17.
As we know
If which is the principal value range of .
So, as in ;
Hence we can write as :
=
Where
and
CBSE Class 12 board exams 2025 to have 50% competency-based questions; no change in 10th
CBSE Class 12 board exams 2024 over; expected result date, trends of last 10 years
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