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