Verify the identity.
+ 
= -2 csc ?
What will be an ideal response?
+ 
= 
= 
= 
= 
= - 
= - 
? 
= - 
= - 2 csc ?
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Estimate the value of the quantity.The velocity of a projectile fired straight into the air is given every half second. Use right endpoints to estimate the distance the projectile travelled in four seconds.
A. 895.6 m B. 467.4 m C. 934.8 m D. 447.8 m
Find the vertices and foci of the ellipse.196x2 + 81y2 = 15,876
A. Vertices: (0, ±14); Foci: (0, ±
)
B. Vertices: (±14, 0); Foci: (±
, 0)
C. Vertices: (±9, 0); Foci: (±
, 0)
D. Vertices: (0, ±9); Foci: (0, ±
)
FInd the tangential and normal components of the acceleration.r(t) = (2t sin t + 2 cos t)i + (2t cos t - 2 sin t)j + 8k
A. a = 2T + 
N
B. a = 2T + 2tN
C. a = 2tN
D. a = 
N
Raise the fraction to the indicated power.105 ? 8000
A. 800,0000 B. 8,000,000 C. 800,000,000 D. 80,000