Given:
The function is
To find:
The inverse of the given function.
Solution:
We have,
Put f(x)=y.
Interchange x and y.
Isolate the variable y.
Putting , we get
For ,
It means for function and for inverse function
because the range of the function is the domain of inverse function.
Therefore, for
.
By the polynomial remainder theorem, the remainder upon dividing a polynomial by
is the same as the value of
.
Here and
. We have
Answer:
m∠B = .
Step-by-step explanation:
Since the three sides of the triangle are given, then we apply cosine rule.
=
+
- 2ac Cos B
But, a = 660 cm, b = 680 cm, and c = 100 cm.
So that;
=
+
-2(660 x 100) Cos B
462400 = 435600 + 10000 - 132000 Cos B
462400 = 445600 - 132000 Cos B
132000 Cos B = 445600 - 462400
= -16800
Cos B =
= -0.1273
B = -0.1273
=
Thus, measure of ∠B is .