What number is 20% more than 15? Is it 27?
2 answers:
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Answer:
X is 22.5°
Step-by-step explanation:
» Let's assume our diagram is as above, from trigonometric ratio:
- theta is X
- opposite is a
- hypotenuse is c
We want to find a scalar function 
such that 
.
So we need to have
Integrating both sides with respect to
gives
Differentiating with respect to
gives
So we find that
By the fundamental theorem of calculus, we then know the line integral depends only on the values of at the endpoints of the path. Therefore
So we need to have
Integrating both sides with respect to
Differentiating with respect to
So we find that
By the fundamental theorem of calculus, we then know the line integral depends only on the values of
This is the work and the answer is 4/23 or (in decimal form) 0.17391304
