Asked by Linda
Use the local linear approximation to approximate a value for f (x)= sec 121 degrees.
Answers
Answered by
Steve
f = secx
df = secx tanx dx
dx = 1° = 0.01745 radians
df = -2(-√3) * 0.01745 = .0604
so, sec 121° = -2 + .0604 = -1.9396
actual value: -1.9416
df = secx tanx dx
dx = 1° = 0.01745 radians
df = -2(-√3) * 0.01745 = .0604
so, sec 121° = -2 + .0604 = -1.9396
actual value: -1.9416
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