B. [0, infinity]
C. All real numbers
D. 2pi,
Answer:
Option C - All real numbers
Step-by-step explanation:
Given : Function
To find : The domain of given function ?
Solution :
Domain is defined as the set of values for which function is defined.
We have given the function,
We know, for any value of the function is defined.
Which means the set of all real numbers defined the given function i.e.
Therefore, Option C is correct.
The domain of is all real numbers.
A. x – 9
B. x – 2
C. x + 5
D. x + 7
Factorize the quadratic trinomial by the rule:
1. Find the roots:
2. Factorize the polynomial:
3. Only factor x-2 is given in options, then the correct choice is B.
The factor of the given polynomial expression is (x - 2). So, option B.
Using variables and coefficients, polynomials are algebraic expressions. The word indeterminates is sometimes used to describe variables.
For polynomial expressions, addition, subtraction, multiplication, and positive integer exponents are all mathematical operations that are possible, however division by variables is not one of them.
The given polynomial expression is,
x²- 9x + 14
So, we can write that,
(x - a) (x - b) = x²- 9x + 14
So, we can write two equations,
ab = 14
a + b = 9
Therefore, we can say that,
a = 2 and b = 7
Therefore, the factors of the given polynomial expression is,
(x - 2) (x - 7) = x²- 9x + 14
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Answer:
The sum of infinite geometric series is:
40
Step-by-step explanation:
We have to find the sum of the geometric series which is given as:
which could also be written as:
As we know that any infinite series of the form:
is convergent if |x|<1
Here we have:
x=5/6<1
Hence,the infinite series is convergent.
Also we know that for infinite geometric series the sum is given as:
Here we have:
a=5/6 and common ration r=5/6
Hence, the sum of series is:
Hence, the sum of series is:
40