Describe how the cosecant, secant and cotangent are related to the first three trigonometric functions learned.

Cosecant, secant and cotangent are the reciprocals of sine, cosine and tangent.

Step-by-step explanation:

The cosecant is the reciprocal of the sine. The secant is the reciprocal of the cosine. The cotangent is the reciprocal of the tangent.

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation