Test Index

CBSE Class 12 Math 2022 Term I Solved Paper

© examsnet.com
Question : 7 of 50
Marks: +1, -0
The principal value of cos−1(‌
1
2
)+sin‌−1(−‌
1
√2
) is
Solution:     👈: Video Solution
Explanation: cos−1(‌
1
2
)‌+sin‌−1(‌
−1
√2
)
‌=cos−1(cos‌
π
3
)−sin‌−1(‌
1
√2
)
‌=‌
π
3
−sin‌−1(sin‌‌
π
4
)
‌=‌
π
3
−‌
π
4
=‌
π
12
© examsnet.com
Go to Question:
Prev Question
Next Question