Question

Question #f282e

Answer 1

Before using these answers, find out what the question means by 'exact value'. Does it mean the whole decimal from the calculator or is it some other meaning?

Explanation:

`sin(theta) = 12/13`

`theta=sin^-1(12/13)=67.38^"o"`

`cot(theta)=1/(tan(theta))=1/tan(67.38)=0.41666943299`

`cos(2theta)=cos(2(67.38))=cos(134.74)=-0.70`