tanθ + secθ = x হলে, cosecθ-এর মান কত? (If tanθ + secθ = x, then what is the value of cosecθ)
A
x2+1x2-1
B
x2-1x2+1
C
1-x21+x2
D
1+x21-x2
Correct Answer: x2+1x2-1