Mathematics
19.01.2020 05:12
126
134
10
Solved by an expert
Simplify the following, tan -x cos -x
Simplify the following, tan -x cos -x
Show Answers
applereams
5,0(4 marks)
Tan(A)=sin(A) / cos(A)
so
tan(A)*cos(A)=sin(A)/cos(A)*cos(A)
=sin(A) [ by cancelling cos(A) ]
substitute -x for A, then
tan(-x)cos(-x) = sin(-x)
[ provided cos(-x) does not equal zero, i.e. x does not equal (k+1/2)pi where k is an integer ]
so
tan(A)*cos(A)=sin(A)/cos(A)*cos(A)
=sin(A) [ by cancelling cos(A) ]
substitute -x for A, then
tan(-x)cos(-x) = sin(-x)
[ provided cos(-x) does not equal zero, i.e. x does not equal (k+1/2)pi where k is an integer ]
20LindleyN
4,8(32 marks)
Step-by-step explanation:
Given
Required
Express as an exponential function 
First, we calculate the value of b;
Since the population decrease, then
--- This represents decrement of decay factor
Substitute
So:
becomes
Popular Questions about the subject: Mathematics
Elija la respuesta correcta del cambio de fracción impropia...
Mathematics
13.03.2021 02:11
Angie read a total of 36 books over 9 months. If Angie has read...
Mathematics
25.01.2020 19:29
Plzzzzz help fast and talk coz im soooo bored...
Mathematics
18.02.2022 07:05
Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz solve this...
Mathematics
06.06.2020 05:21
Simplify each expression. -10 (n+6)...
Mathematics
03.03.2020 06:36
Jamie will choose between two catering companies for an upcoming...
Mathematics
05.04.2021 02:58
What is the supplementary angle of 30 degrees? A. 60 degree...
Mathematics
23.01.2023 20:24
A Rental car company charges $120 for a weekly rental plus 8...
Mathematics
20.01.2021 00:51
If f(x) is a linear function, what is the value of n?...
Mathematics
05.08.2022 22:20
A man called his wife to tell her that they needed to switch...
Mathematics
08.01.2020 00:16
New questions by subject
What should a child do if he/she is lost in a crowd?...
English
23.06.2023 21:41
Why do u think the italian city states ruled by autocrats proclaimed...
History
04.02.2020 14:10
1) how can a free press hold the government accountable? a)...
Social Studies
31.12.2020 15:21
Adozen eggs cost $1.10 in dover. in ensley, the eggs cost 10%...
Mathematics
07.06.2021 17:41
In the technology referred to as a message is divided into several...
Computers and Technology
04.03.2021 04:25
Grady is writing a draft of an essay about his favorite sport...
English
19.08.2020 12:14
What is the distance between 1 and -12...
Mathematics
07.02.2023 10:41
If the probability of winning our first prize in 5 or less tries...
Mathematics
12.11.2022 09:33
Which is an example of the use of plants in human society? fossil...
Biology
31.05.2023 22:06
Mandi and thomas were married and had a child aged 7 in 2014....
Social Studies
18.06.2023 07:59
Find out answers to questions
from an AI-bot
from an AI-bot
Get full access
Answers
