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
jarptica [38.1K]
2 years ago
6

Which expression is equivalent to sin(2x) cosx

Mathematics
1 answer:
Vsevolod [243]2 years ago
7 0

Answer:

2sin(x)cos^2(x)

Step-by-step explanation:

To solve the problem, you must expand the trigonometric expression using the information given.

sin(2x)cosx\\sin(2x)\\=2sin(x)\\=2sin(x)cos^2(x)

You might be interested in
Cathy is three times as old as Katie, but in six years, Cathy will be
PIT_PIT [208]

Answer:

Cathy is 18 Katie is 6

Step-by-step explanation:

mhm

7 0
2 years ago
9 to the power 18 = 27 to the power x work out the value of x
Strike441 [17]

Answer:

Step-by-step explanation:

27^x = 9÷(3^x)

So (3^3)^x = (3^2)÷(3^x)

So 3^3x = 3^(2-x)

Comparing powers on both sides,

3x = 2 - x

So, 4x = 2

So, x = 1/2

Given ( 27 ) ^ x = 9 / 3 ^x

⇒ ( 3 × 3 × 3 )^x = ( 3 × 3 ) / 3^x

⇒ ( 3 ³ )^x = 3² / 3^x

⇒  3 ^ 3x × 3^x = 3²            [ since  ( a ^m)^n = a ^mn ]

⇒ 3^ (3x +x) = 3²                [ since a^m × a^n = a ^m+n ]

⇒ 3^4x = 3²

⇒4x = 2                      [ since  If a ^m = a ^n then m = n ]

⇒ x = 2 / 4

 ∴ x = 1 / 2

I hope this helps you.

8 0
3 years ago
ich sequence of transformations would result in a figure that is similar, but not congruent, to the original figure? Select all
n200080 [17]
Translations, reflections, and rotations always result in a figure that is congruent. Only dilations with a scale factor other than 1 will give a similar, but not congruent, figure.

The 1st and 4th selections apply.
6 0
3 years ago
SOMEONE HELP ME WITH THIS PROOF
Pavlova-9 [17]
Okay, for this proof, I'll write the steps out.

Statements:
1. ABCD is a parallelogram
2. FG bisects DB
3. <GEB ≡ (pretend congruent symbol) <FED
4. DE ≡ BE
5. <CDA ≡ <ABC
6. < CDB ≡ <DBA
7. triangle DFE ≡ triangle BGE
8. FE ≡ GE
9. DB bisects FG

Reasons:
1. Given
2. Given
3. vertical angles are congruent
4. If bisected, then split into congruent parts
5. opposite angles of a parallelogram are congruent
6. Subtraction Property
7. ASA
8. CPCTC
9. segment split into congruent parts by other segment is bisected.

Hope this helped!  :)
6 0
3 years ago
How many plastic bags does a person in the United States use after 5 years?
solniwko [45]

Answer:

2 mill

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Factor the given polynomial 2z-22z+48 completely.
    6·2 answers
  • Maria has an 8 sided die that is numbered from 1 to 8 she rolls the die 96 times about how many times can she expect to roll an
    11·2 answers
  • What is a fraction equation that equals 1
    5·2 answers
  • Given: <br> ABCD is a rectangle.<br><br><br><br> If AC = 12, then BE =<br><br> 3<br> 4<br> 6
    7·2 answers
  • What is 61% percent written as a decimal? 100 points and Brainliest
    11·1 answer
  • John took all his money from his savings account. He spent $52 on a radio and 1/2 of what was left on presents for his friends,
    10·1 answer
  • How many square cetimeters are in 1 square ft?
    9·1 answer
  • HELPPPP PLEASEEEEEE HELP ME
    13·1 answer
  • Does (2, 8) make the equation y = 4x true?
    13·2 answers
  • Sarah is paid $20 an hour at her new job. She wishes to graph her total pay y, as a function of the number of hours, x. She want
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!