Verify the identity.
= cot ? - tan ?
What will be an ideal response?
= 
= 
- 
= 
- 
= cot ? - tan ?
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Find an equation of the tangent line at the given point P.y = x3 - 9x, P(1, -8)
A. y = 3x - 7 B. y = 3x - 11 C. y = -6x - 2 D. y = -6x
Solve the problem.Consider a retirement savings account where the monthly contribution is $150 for the first 10 years, is increased to $200 for the next 20 years, and then is increased once again to $250 for the last 15 years. The APR is always 5.1% compounded monthly. What is the value of the account at the end of 45 years? Round your answer to the nearest cent.
A. $389,016.83 B. $384,840.75 C. $380,662.67 D. $387,291.43 E. $391,468.51
Write the relationship as a formula.The energy w stored in a capacitor can be determined by dividing the product of the capacitance c and the square of the applied voltage e by 2.
A. w = 
B. w = 
C. w = 
D. w = 
Find the equation for the line described.the horizontal line passing through the point (2, -3)
Fill in the blank(s) with the appropriate word(s).