Cos (tan-1 3/4) =
4/5
2/5
1/4
3/4
The value of is
2
1
√2
The product s(s-a) (s-b) (s-c) is equal to
Δ
Δ2
2 Δ
Δ/s
If sin-1 (1/2) = tan-1 x, find the value of x
√3
1/2
Sin (1/2 cos-1 4/5)
3/16
3/8
tan-1 (1/7) + tan-1 (1/13) =
tan-1(1/9)
tan-1 (20)
tan-1(2/9)
tan-1(3/4)
0
3
If sin θ = 3/8 and θ is acute, find sin 2 θ
cos 15o =
