Establish the identity.
= cos x + cot x
What will be an ideal response?
= cos x
= 
= 
+ 
= cos x + cot x.
Mathematics
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Find the length of the parametric curve defined over the given interval.x = cos t, y = ln(sec t + tan t) - sin t, 0 ? t ? 
A. ln 
- ln 2
B. ln 2 - ln 
C. 
D. ln 2 + 
Mathematics
Perform the indicated operation.The shape of a curve in a machined part results in the expression 6R - (3R - r). Simplify the expression.
A. 6R B. r - 3R C. 3R - r D. 3R + r
Mathematics
Fill in the blank with one of the words or phrases listed below. 
The 
of a polygon is its distance around or the sum of the lengths of its sides.
A. product B. perimeter C. area D. place value
Mathematics
Convert the given unit of measure to the measure shown.161 milligrams to grams
A. 16,100 grams B. 161,000 grams C. 1.61 grams D. 0.161 gram
Mathematics