in the diagram below, AB and BC are tangent to O. Which equation could be solved to find y, the measure of ADC
2 answers:
Answer:
A
Step-by-step explanation:
∠ABC is formed by 2 tangents to the circle and is measured as
∠ABC = (m arc ADC - m arc AC ), that is
(y - 119) = 61 → A
Answer:
A.
Step-by-step explanation:
We have been given a diagram. We are asked to choose the equation that can be used to solve for y.
We know that measure formed by two intersecting tangents outside a circle is half the difference of corresponding arcs.
Switch sides:
Therefore, option A is the correct choice.
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Step-by-step explanation:
look it is very easy.
use formula of simple interest
Answer:
f'(x) = -1/(1 - Cos(x))
Step-by-step explanation:
The quotient rule for derivation is:
For f(x) = h(x)/k(x)
In this case, the function is:
f(x) = Sin(x)/(1 + Cos(x))
Then we have:
h(x) = Sin(x)
h'(x) = Cos(x)
And for the denominator:
k(x) = 1 - Cos(x)
k'(x) = -( -Sin(x)) = Sin(x)
Replacing these in the rule, we get:
Now we can simplify that:
And we know that:
cos^2(x) + sin^2(x) = 1
then: