+157 Find the exact value of
cot-1[tan(45°)] and
csc^-1[sec(150°)]
+128578 cot-1 [tan 45°] =
cot-1 [1] =
45°
csc-1 [sec150°] =
csc-1 [-2/sqrt(3)] =
-60°
+157 I have the answer for both of these problems
the first one:135°
the second one : -60°
Here is the work that is given to me which by the way I do not understand and maybe you will.
cot-1[tan(45°)] = cot-1(-1) from A S TC cot-1(-1)=135°
Please hellp !!!!!
+128578 Arianna....the tan(45°) = 1 , not -1
So
cot-1 [ tan (45°) ] =
cot-1 [1] =
45°
+157 I'm telling you this problem was already answered for me , I am expected to she the step by step process that leads the answer to be 135°
I was given a few steps which I do not understand ... But the answer of the problem in 135°
+128578 Here's the answer.....straight from WolframAlpha.......
It agrees perfectly with mine.....!!!!!
+157 I realize now that I wrote the question wrong 
cot-1[tan(-45)]
And even though I made it negative the answer did not change !
