Question

cos x=-1/2,
x lies in third quadrant

Answer 1

Hope it will help u....

Answer 2

Step-by-step explanation:

sin^2x+cos^2x=1

sin^2x=1-cos^2x

sin^2x=1-(-1/2)^2

=1+1/4

=4+1/4

sin x=5/4

cosec x=-4/5

tan x=sin x/cos x

=5/4/1/2

=5/4×2/1

=5/2

cot x=cos x/sin x

=1/2/5/4

=2/5..