If tan θ/2 = t, then (1 - t2)/(1 + t2) is equal to
Express the angular measurement of the angle of a regular octagon in radians.
Sin (n + 1 ) x sin(n+ 2 )x + cos ( n +1 ) x cos ( n + 2 ) x =
cos x
sin x
tan x
sec x
Convert 150 into radian
π/10
π /5
π /7
π/12
If cosθ + sinθ = √2 cosθ, then cosθ - sinθ =
Find tan x if sinx = 3/5, x lies in sescond quadrant.
-4/3
- 3/4
-4/5
-5/4
5
10
12
15
Find the degree mesures corresponding to ( -4) c. ( use π = 22/7)
- 240o
-229o 5' 27 3/11 "
- 47o 30'
39o 22' 30"
