1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mylen [45]
2 years ago
6

Please help!!! Which is not equal to the others?

Mathematics
1 answer:
svetlana [45]2 years ago
7 0

Answer:

b

Step-by-step explanation:

Given

a cos2x

b

2sinxcosx = sin2x

c

2cos²x - 1 = cos2x

d

1 - 2sin²x = cos2x

b is the expression not equal to the others

---------------------------------------------------------------------------

Note

cos2x = cos²x - sin²x = cos²x - (1 - cos²x) = 2cos²x - 1

cos2x = (1 - sin²x) - sin²x = 1 - 2sin²x

You might be interested in
In the figure BD||EG and the measure of angleACB=35 degree. What is the measure of angle GFH
GREYUIT [131]
That would also be 35
8 0
3 years ago
Read 2 more answers
While unpacking a box of canned vegetables, you notice that 2 out of 40 cans are dented. Write “2 out of 40” as a fraction, deci
nata0808 [166]
2/40=1/20
Percentage:5%
Decimal-0.05
8 0
3 years ago
PLS HELP!!!!!!!!!!!!
seropon [69]

Answer:

72 55/76

Step-by-step explanation:

it's right trust me <3

8 0
2 years ago
Read 2 more answers
Plz help me with this
Gwar [14]

Answer:

Result is 3

Step-by-step explanation:

Every number elevated to zero is equal to 1

3*4^0 = 3

3*1 = 3

Best regards

5 0
3 years ago
Read 2 more answers
What could be the Principal Amount, if rate if interest is 16% and $18 is earned as an interest after 3 months
liq [111]

The principal amount is $37.5

Step-by-step explanation:

Rate of interest= 16%

Rate of Interest = $18

Time = 3 months

Interest = (principal amount x rate of interest x time) /100

18 = (p x 16 x 3) /100

1800 = 48p

P = 1800/48

P = 37.5

The principal amount is $37.5

6 0
2 years ago
Other questions:
  • According to chebyshev's theorem, at least what percent of the observations lie within plus and minus 1.75 standard deviations o
    5·1 answer
  • A bathroom scale is most likely measuring in kilograms grams centigrams milligrams
    7·2 answers
  • Solve for side in right triangles
    15·1 answer
  • YOU HAVE TO MATCH THEM !!
    12·2 answers
  • Since i forgot to attach a image last time im asking again
    11·1 answer
  • Nalini is a real estate agent. She is paid
    6·1 answer
  • 6. A factory has two types of machines.
    9·2 answers
  • HELP ME SOMEONE PLEASE :(
    5·2 answers
  • If x=−4,y=−2,andz=12, solve the following:<br><br> zx
    11·2 answers
  • The ratio of boys to girls at a movie is 2:1.if there were five girls at the movie how many boys were there
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!