is equal to
cos [ tan -1 {sin (cot-1 x )} ] is equal to _________.
None of these
, When x > 0, then x is equal to ______.
0
3
-2/3
Let f (x) = sec-1x + tan-1 x Then f (x) is real for
x∈[-1 , 1]
x∈ R
x∈ (-∞ , -1) ∪ [1 , ∞]
tan -1n + cot -1 (n +1 ) is equal to ______.
cot -1 (n2 + n + 1 )
cot -1 (n2 -n+1 )
tan -1 (n2 + n + 1 )
The value of is
cos-1 (cos x) = x is satisfied by
x∈ [-1, 1]
sec-1 ( sin x ) is real , if
x ∈ ( - ∞, α )
x ∈ [ -1, 1 ]
x = ( 2n + 1 ) π/2, n ∈ I
x = n π, n ∈ I
a/2
a3
a2-a +1
a2 + a -1
1
