All categories

2 years ago

Simplify the expressioncot^2x - cot^2x cos^2x

Mathematics

1 answer:

andrew-mc [135]2 years ago

8 0

Cot^2x - cot^2x cos^2x
= cot^2x - {(cot^2x)(cos^2x)}
= cot^2x { 1 - cos^2x }
= cot^2x { sin^2x }
= (cos^2x/sin^2x) { sin^2x }
= cos^2x

You might be interested in

Please help.... fast

dezoksy [38]

Answer:

alternat interior angle

Step-by-step explanation:

plz mark me brainlists plz and plz

7 0

2 years ago

Read 2 more answers

Graph shown here is the graph of which of the following rational<br> functions?

yarga [219]

Answer:

B) f(x) = 1/x-1

Step-by-step explanation:

You can type it into desmos graphing calculator- hope this helps

6 0

2 years ago

Hi pls help.you do not have to do all 3. just either one will be ok pls explain as well:) thank you

noname [10]

Answer:

${7a^{5}b^{5} c\\$

Step-by-step explanation:

$\frac{28a^{8}b^{6} c^{3} }{4a^{3}bc^{2} }$

→ First look at the first term of each expression and see if they can be simplified, and they can

$\frac{7a^{8}b^{6} c^{3} }{a^{3}bc^{2} }$

→ Now look at the a terms, since a larger one is at the top, you subtract

$\frac{7a^{5}b^{6} c^{3} }{bc^{2} }$

→ Now simplify the b and c terms

${7a^{5}b^{5} c$

3 0

2 years ago

X^2-x-56=0 <br> How do you use the zero product property to solve this?

S_A_V [24]

Answer:

(x - 8) (x + 7)

x = 8 or x = -7

6 0

2 years ago

Read 2 more answers

Solve the equation below and find the variation constant, k .Find y when x = 7 and z=5, if y varies jointly as x and 2, and y= 1

Vlada [557]

<h3>Answers:</h3>

Variation Constant: k = 7/6

y = 245/6 when x = 7 and z = 5

====================================

Explanation:

"y varies jointly as x and z" means that y = kxz

We have (x,y,z) = (4,14,3) as one triple, so,

y = kxz

14 = k*4*3

14 = 12k

12k = 14

k = 14/12

k = 7/6 is the variation constant

The equation goes from y = kxz to y = (7/6)xz

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

Plug in x = 7 and z = 5 to find y

y = (7/6)xz

y = (7/6)*7*5

y = (7/6)*(7/1)*(5/1)

y = (7*7*5)/(6*1*1)

y = 245/6

4 0

2 years ago