+0  
 
0
788
3
avatar
sin3 θ + cos3 θ
sin θ + cos θ
 May 15, 2014

Best Answer 

 #3
avatar+118723 
+10

$$cosec^26a-cot^26a\\\\
=\frac{1}{sin^26a}-\frac{cos^26a}{sin^26a}\\\\
=\frac{1-cos^26a}{sin^26a}\\\\
=\frac{sin^26a}{sin^26a}\\\\
=1$$

.
 May 15, 2014
 #1
avatar+118723 
0

I'm confused.

What is the question?

 May 15, 2014
 #2
avatar+130511 
+5

I think they might mean this:

csc^2 (6a) - cot^2 (6a)

If so, using a trig identity, the answer is (wait for it!!)

1 = ONE = "WUN" = "UNO"

 


 May 15, 2014
 #3
avatar+118723 
+10
Best Answer

$$cosec^26a-cot^26a\\\\
=\frac{1}{sin^26a}-\frac{cos^26a}{sin^26a}\\\\
=\frac{1-cos^26a}{sin^26a}\\\\
=\frac{sin^26a}{sin^26a}\\\\
=1$$

Melody May 15, 2014

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