How can you use trigonometric ratios to calculate the direction α of a general vector , similar to the diagram?

Rewrite the following without an exponent. (5/8)-1

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.