Answer:
a) Only the first one is an identity.
Step-by-step explanation:
1). 8 cos O tan O csc O = 8 simplifies to:
cos O tan O csc O = 1
cos O * (sin O / cos O) * (1 /sin O)
= cos O sin O / cos O sin O
= 1
So it is identity.
2) 13 sec^2 O/ cos^2 O - tan^2 O / cos^2O
= 13 sec^2 O - tan^2 O / cos^2 O
Now sec^2 O = 1 + tan^2 O, so we have:
(13( 1 + tan^2 O) - tan^2 O) / cos^2 O
= (12 tan^2 O + 13) / cos^2 O
This is not always = 2 so its not an identity.
An obtuse angle is an angle with an angle measure greater than 90 degrees.
Answer:
3/2, 0, y=3/2x
-1/3, -2.5, y=-1/3x-2.5
1, 6, y=x+6
1/2, 2, y=1/2x+2
undefined, 0, x=-1
0, -4, y=-4
Step-by-step explanation:
hopefully this helps :)
Answer: You too whos next
Man.
divide 15 by 1/4 to get you're answer
