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
hram777 [196]
3 years ago
6

Verify the identity 6cos^2(x) -3 = 3 - 6sin^2(x)

Mathematics
1 answer:
Lorico [155]3 years ago
5 0

Answer:

It is proved that  6\cos ^{2}x -3 = 3 - 6\sin ^{2} x .

Step-by-step explanation:

We already have the identity of x as \sin ^{2}x + \cos ^{2}x = 1 .......... (1)  .

So, from equation (1) we can write that

\cos ^{2} x = 1 - \sin ^{2} x

⇒ 6\cos ^{2} x = 6 - 6 \sin ^{2} x

⇒ 6\cos ^{2} x -3 = 6 - 6 \sin ^{2}x -3

⇒ 6\cos ^{2}x -3 = 3 - 6\sin ^{2} x

Hence, it is proved that  6\cos ^{2}x -3 = 3 - 6\sin ^{2} x . (Answer)

You might be interested in
Identify the axis of symmetry and vertex of f(x) = –2x2 –2x–1.
Leya [2.2K]

<span>Given the quadratic equation: f(x) = -2x^2 - 2x - 1, the axis of symmetry can be obtained by finding the line that divides the function into two congruent or identical halves. Thus, it should pass through the vertex and is equal to the x-coordinate of the vertex. </span>

<span>Note that a quadratic equation in standard form: y = ax^2 + bx + c, has the vertex located at (h,k) where, h = -b/2a and k is determined by evaluating y at h. In this case, a = -2, b = -2, thus, h = -0.5, k = 0.5. Thus, the vertex is located at (-0.5, 0.5) and the axis of symmetry is at x = -0.5. </span>

4 0
3 years ago
Read 2 more answers
Can someone please help me with my algebra fraction homework pages 8,9 and 10. Thank you!
Alecsey [184]

Answer:

Step-by-step explanation:

#8 the answer is A

using special products, fact the denominator of both fractions

q^2+5q+6 is the same as (q+2)(q+3)

q^2+3q+2 is the same as (q+2)(q+1)

no you have to find the lease common denominator of the two fractions

multiply the first fraction by (q+1)/(q+1)

multiply the second fraction by (q+3)/(q+3)

you will get (q^2+2q+3)/(q+1)(q+2)(q+3) after you combine like terms and stuff like that.

#9 the answer is C

using special products factor the numerator of the first fraction, and the denominator of the second fraction

r^2+7r+10 is the same as (r+2)(r+5)

r^2-5r-50 is the same as (r-10)(r+5)

then factor the numerator if the second fraction

3r-30 is the same as 3(r-10)

is the second fraction there is (r-10) in the numerator and denominator, simplify that.

then simplify the 3, and the (r+5)

you will be left with r+2 from the first fraction

#10 the answer is A

when you divide same base exponents, you subtract their powers

so

x^0/x^2 = x^-2       and

y^-3/y^-1=y^=2

so you are left with x^-2*y^-2 but that is not an option

we also know that negative exponents is the same thing as the reciprocal with the exponent in the denominator

x^-1 = 1/x

so

x^-2*y^-2 = 1/x^2*y^2

6 0
3 years ago
Please help me!! No files allowed. I need the answer and an explanation!
Alexus [3.1K]

Answer:

I belive the answer is 1/324

5 0
3 years ago
Hi, in need of a little assistance.Question: calculate the internal area of the living room.
Dominik [7]

The living room is rectangular. We would find the area by applying the formula for calculating the area of a rectangle which is expressed as

Area = length x width

From the information given,

internal length = 5.2

internal width = 2.95

Thus,

internal area of the living room = 5.2 x 2.95

internal area of the living room = 15.34 m^2

7 0
1 year ago
What would it be a little help, please
borishaifa [10]

Answer:

Triangular prism with a surface area of 144, C

Step-by-step explanation:

4 x 3 = 12, 12 divided by 2 ( x 1/2 ) = 6

6 x 2 = 12

3 x 11 = 33

4 x 11 = 44

5 x 11 = 55

12 + 33 + 44 + 55 = 144

5 0
3 years ago
Other questions:
  • 4x-6y-8=0 in function form
    11·1 answer
  • Lynn is making custom bricks. She combines 39 pounds of water and 48 pounds of brick dust
    6·1 answer
  • Find a positive number such that the sum of the number and its reciprocal is as small as possible?
    6·1 answer
  • Zach spent 2/3 hour reading on Friday and 1 1/3 hours reading on Saturday. How much more time did he read on Saturday than on Fr
    14·2 answers
  • A space traveler saw 17 stars. All but 8 disappeared into a black hole. How many were left?
    8·1 answer
  • part 2. Find the value of the trig function indicated, use for that Pythagorean theorem to find the third side if you need it.​
    14·1 answer
  • 8.4kg plus 3.25kg equals
    7·1 answer
  • If y = 9 inches, z = 11 inches, h = 5 inches, and w = 4 inches, what is the area of the object?
    5·1 answer
  • Coco scored team player three games in weekend.They scored: •six points in the first game, •half as many points in the second g
    6·1 answer
  • 4=y divided by 3. what is y
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!