Find the measure of angle abd HELPPPP
2 answers:
Answer:
Option c) 119 degrees
Step-by-step explanation:
Given is a triangle BCD with exterior angle at B as ABD
Given are the angles of D and B.
We are to find the exterior angle measure ABD
WE can do this in two ways.
One method is to find ABD as supplementary of angle B since linear paid
Hence
II method is to use the fact that exterior angle is the sum of other two interior angles
Angle C =
Angle ABD = sum of C and D
=
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Okay, this is my proof. I'm not exactly sure if this is a viable proof, but I think it works.
Hence, from x > 0, it is always increasing (gradient > 0)
y = lnx crosses the x-axis only once, so there is only one root.
Since x cannot be less than zero, as well as a monotonic increasing function for x > 0, and the fact that it crosses the x-axis once, then as x approaches 0 from the positive side, f(x) has to be approaching negative infinity.
Hence, from x > 0, it is always increasing (gradient > 0)
y = lnx crosses the x-axis only once, so there is only one root.
Since x cannot be less than zero, as well as a monotonic increasing function for x > 0, and the fact that it crosses the x-axis once, then as x approaches 0 from the positive side, f(x) has to be approaching negative infinity.