Verify the identity.
+ 
= 2 csc x
What will be an ideal response?
+ 
= 
= 
= 
= 2 csc x.
Mathematics
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Find an equation for the line tangent to the given curve at the indicated point.y = x2 - 4 at (-2, 0)
A. y = -4x - 12 B. y = -4x - 8 C. y = -2x - 8 D. y = -4x - 16
Mathematics
Determine whether the integration formula is correct. 
+ 
cot-1
x dx = ln x + ln (25 + 9x2) + 
x cot-1 
x + C
A. Yes B. No
Mathematics
Use a calculator to perform the operation. Express your answer in scientific notation.
A. 1.39 × 10-1 B. 1.39 × 10-3 C. 1.388728918 × 10-11 D. 1.39 × 10-11
Mathematics
Solve.The cross-sectional area of a rectangular duct is 240 square inches. If the length is 5 inches less than twice the width, what is the length of each side? Round to the nearest hundredth.
What will be an ideal response?
Mathematics