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Sergio039 [100]
3 years ago
13

Need help with this please!!!!!!!!!!

Mathematics
2 answers:
anastassius [24]3 years ago
5 0
Okay I will help hold on
EastWind [94]3 years ago
5 0
It's hard to read....
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B) (1 - cos B)(1 + cos B) =<br> 1/cosec^2(B)
faltersainse [42]

Answer:

Proved

Step-by-step explanation:

(1-cosB)(1+cosB)=\frac{1}{cosec^2B} \\\\Use\\\\ (a+b)(a-b)=a^2-b^2 ,\\so,\\=(1)^2-(cosB)^2\\=1-cos^2B\\\\Now\ ,  we\ know\ \\sin^2B+cos^2B=1\\\\so,\\sin^2B=1-cos^2B\\so we just replace,\\\\=1-cos^2B=>sin^2B\\and\ since\ sinB=\frac{1}{cosecB} \\\\=sin^2B=>\frac{1}{cosec^2B}\\

4 0
4 years ago
type the correct answer in the box. if the measure of angle θis 7⁢π6. the equivalent measurement in degrees is °.
Travka [436]

If the measure of an angle "θ" is 7⁢(π/6), then it's equivalent measurement in degrees is 210°.

As per question statement, we have an angle "θ" whose measurement in radians is 7⁢(π/6). We have to convert this radians into its equivalent measurement in degrees. Thus, to solve this question, we will have need to know the relation between radians and degrees, which goes as,

("π" Radian = 180°).

Then, we will apply unitary method to our provided data and use the above-mentioned relation to obtain our desired answer, i.e.,

π Radian = 180°,

then, 7π Radian = (180*7)°,

Then, 7⁢(π/6) Radian = \frac{(180*7)}{6} =(30*7)=210°.

  • Radian: This is an unit of angle, equal to an angle at the center of a circle whose arc is equal in length to the radius.
  • Degrees: This is another unit of measurement of angles, one unit of this being equal to one three-hundred-and-sixtieth of the circumference of a circle.

To learn more about Radians and Degrees, click on the link below.

brainly.com/question/9045738

#SPJ4

8 0
2 years ago
Is the sequence Arithmetic or Geometric?<br> -2, 4.-8, 16, ...
Sonbull [250]

Answer:

This is an geometric sequence because the common ratio is -2.

Step-by-step explanation:

-2*-2=4

4*-2=-8

-8*-2=16

So, as we are seeing that the common ratio is -2, so this is an geometric sequence.

6 0
3 years ago
Norma has 9 pies to divide among 4 friends. How many pies will each friend receive if all of the pies must be used and can be di
Ira Lisetskai [31]

Answer:

D. 2 1/2

Step-by-step explanation:

9/4 = 2.50 = 2 1/2

6 0
3 years ago
Read 2 more answers
Round to the nearest hundredth 0.7553
spayn [35]
What is 0.7553 rounded to the nearest hundredth?

0.76
It is: 0.76
0.76
It is 0.76 rounded to the nearest hundredth
3 0
3 years ago
Read 2 more answers
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