Question

Question 45
OSX +
cosº x=1
X + 2 sinº x + sin
1) 0
2
3​

Answer 1

Answer:

We know that sec−1x is defined for x∈(−∞,−1]∪[1,∞). But sin−1x is defined for x∈[−1,1]

Hence, sec−1x+sin−1x=π2 for x=±1