Answer:
Step-by-step explanation:
2 csc²x-2 csc x-1=0
or

Answer:
Verify the identity using trig rules.
tan ( x − π
/2 ) = −
cot ( x ) is an identity
Step-by-step explanation:
i think this is it, hope it helps
That’s easy. He just has to score lower than the lowest athlete’s time. Since the lowest time is 9.75 seconds, any time lower than that will win him the competition.