Cot8theta+cosec4theta=cot2theta-cos ec8theta​

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*

The correct answer is -4

I'm not sure but i think it's 1670km/h