All categories

2 years ago

Cos45/sec30+cosec60*

Mathematics

2 answers:

Lera25 [3.4K]2 years ago

7 0

Answer:

= (√3+4√2)/2√6

Step-by-step explanation:

To evaluate cos45*/sec30*+cosec60*

First according to trigonometry identity

sec 30 = 1/cos30

cosec 60 = 1/sin60

Substitute

cos45*/sec30*+cosec60*

= cos45/(1/cos30) + 1/sin60

= cos45coss30 + 1/sin60

= 1/√2 * √3/2 + 1/(√3/2)

= √3/2√2 + 2/√3

= (√9+4√2)/2√6 +

= (√3+4√2)/2√6

Svetradugi [14.3K]2 years ago

3 0

Answer:

telangana na India na

You might be interested in

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%5Csqrt%7B-4%7D%20%7D%7B%283%2B1%29-%282%2B3i%29%7D%20" id="TexFormula1" title

frozen [14]

$\sqrt{-4}$ can also be written as 2i
where i = √-1

$\frac{2i}{4-2-3i} = \frac{2i}{2-3i}$

Rationalizing denominator,

$\frac{2i(2+3i)}{(2-3i)(2+3i)} = \frac{4i-6}{4+9} = \frac{4i-6}{13}$

8 0

3 years ago

Plz help this question out

Elden [556K]

Answer:

bad in this..............

3 0

2 years ago

Group the first two terms by underline the first two terms 16x^3-4x^2-4x+1

Daniel [21]

Answer:

Terms are the things that are separated by a (+) or a (-).

Step-by-step explanation:

<u>16x^3</u> - <u>4x^2</u> -4x+1

I don't think I'm right...

7 0

2 years ago

"Jeremy runs 7 miles per week and increases his distance by 1 mile each week. Tony runs 3 miles per week and increases his dista

s344n2d4d5 [400]

Make a table graph and go from 0-10 top for weeks and bottom for miles, label one Jeramy and the other one tony. For Jeremy add one mile each week and for timely add to by week 4 they both should have ran 10 miles

5 0

3 years ago

Help me out here guys

kvasek [131]

D.

f(x) can be written as (x+2)(x-2)(x-1)
by using difference of two squares to expand x^2 - 4 whch yields 3 x intercepts

similarly, k(x) can be written as
x(x+5)(x-5) which also yields 3
x intercepts (0,-5, and 5)

3 0

2 years ago

Cos45*/sec30*+cosec60*​

Cos45/sec30+cosec60*