All categories

3 years ago

Is cos theta=cos(-theta)

Mathematics

1 answer:

saul85 [17]3 years ago

4 0

Answer:

TRUE

Step-by-step explanation:

An even function is a function that satisfies that f(x) = f(-x). Also, we know that cosine is an even function, therefore cos(theta) equals cos(-theta).

You might be interested in

Which of the following are steps to use when formulating an equation? Check all that apply.

Ber [7]

Answer:

A and B

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule.

lubasha [3.4K]

Answer:

The answer is option C.

Step-by-step explanation:

The arithmetic sequence is given by

$A(n) = - 6 + (n - 1)( \frac{1}{5} )$

where n is the number of terms

For the first term

n = 1

So we have

$A(1) = - 6 + (1 - 1)( \frac{1}{5} )$

$= - 6 + (0)( \frac{1}{5} )$

$= - 6$

For the fourth term

n = 4

$A(4) = - 6 + (4 - 1)( \frac{1}{5} )$

$= - 6 + (3)( \frac{1}{5} )$

$= - 5 \frac{2}{5}$

For the tenth term

n = 10

$A(10) = - 6 + (10 - 1)( \frac{1}{5} )$

$= - 6 + (9)( \frac{1}{5} )$

$= - 4 \frac{1}{5}$

Hope this helps you

4 0

3 years ago

The least common multiple of two numbers is 60, and one of the numbers is 7 less than the other number. What are the numbers? Ju

Aleks [24]

To do this we need to find the factors of 60 these are:
1 and 60
2 and 30
3 and 20
4 and 15
5 and 12
6 and 10
There is 1 pair that have a difference of 7 and that is 5 and 12

6 0

3 years ago

−2x=x^2 −6 from khan academy helppppppp please

masya89 [10]

This is in its simplest form.
There are no like terms to an operation

5 0

3 years ago

Please help me on my math and i will give you brainliest

dusya [7]

Answer:

Step-by-step explanation:

the maximum turning point is on the top and minimum on the bottom in this case maximum Is above the X-axis

5 0

3 years ago