Establish the identity.
= 
What will be an ideal response?
= 
= 
= csc x +1 = 
.
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Use the appropriate formula to find the indicated figurate number.the 18th heptagonal number
A. Hp18 = 837 B. Hp18 = 37.8 C. Hp18 = 783 D. Hp18 = 810
Write the number of inches indicated by the arrow as an improper fraction.
A. 
B. 
C. 
D. 
Provide an appropriate response.Find the ratio of the area of a circumscribed circle of an equilateral triangle to the area of the inscribed circle. [Hint: The altitudes of an equilateral triangle intersect at the center of the inscribed circle. This point of intersection falls one third of the distance along each altitude moving from the base towards the opposite vertex.]
A. 
: 1
B. 
: 1
C. 2 : 1
D. 4 : 1
Use an identity to write the expression as a single trigonometric function or as a single number.
A. tan 22° B. sin 22° C. cos 22° D. cot 22°