#2) Use quotient rule

Remember for solving log equations:

#3) Derivative of tan = sec^2 = 1/cos^2
Domain of tan is [-pi/2, pi/2], only consider x values in that domain.
#4 Use Quotient rule
#9 Use double angle identity for tan

This way you can rewrite tan(pi/2) in terms of tan(pi/4).
Next use L'hopitals rule, which says the limit of indeterminate form(0/0) equals limit of quotient of derivatives of top/bottom of fraction.
Take derivative of both top part and bottom part separately, then reevaluate the limit. <span />
Option A i believe but i dont know for sure
Answer:
no thank you
Step-by-step explanation:
Equating the two formulas for f, you have
n/12 = f = 3y
Then multiplying by 12 you get
n = 36y
This formula converts yards (y) to inches (n).