5
10
12
15
Sin (n + 1 ) x sin(n+ 2 )x + cos ( n +1 ) x cos ( n + 2 ) x =
cos x
sin x
tan x
sec x
If cosθ + sinθ = √2 cosθ, then cosθ - sinθ =
=
sin2 x
cos2 x
cot 2x
tan2 x
Find the degree measures corresponding to ( 7π/6)c ( use π = 22/7 )
240o
520o
210o
25o
Convert -370301 into radian
-75 π/24
-5π/24
-4 π/3
-2 π/4
Find the radian measure of - 47o 30'
