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Arada [10]
3 years ago
7

How to find cos11pi/3. what is the steps to find this

Mathematics
1 answer:
finlep [7]3 years ago
3 0
Cos(11π/3)

=cos(660)

=cos(360+180+90+30)

=cos(60)

=1/2

*Use the trigonometric quadrants to figure out the answer (All, Sin, Tan, Cos). And create the 60 degree right angled triangle with an adjacent side 1 and a hypotenuse of 2.

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Hello fellow people please asnwer this will give brainliest if right!
elena-14-01-66 [18.8K]

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B

Step-by-step explanation:

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What is the equation of a line that passes through points (2, 1)<br> and (3, 2)?
leva [86]

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2. 2x - y = 6,<br> - x + y = -1
allochka39001 [22]

Answer:

x = 5

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Step-by-step explanation:

just substitute the value of one variable into the other

-x +y = -1

or y = -1 +x   <-------- (i just added x to the right side)

now u know what y is equal to, just substitute that value into the first equation

2x - (-1+x) = 6     <-------- instead of y, i put the value of y from the 2 equation

NOW SOLVE FOR X!

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now solve for y since you have the value of x

y = -1 + x

or y = -1 + 5

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3 0
3 years ago
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Janae's savings account has $50 on September 19. If she plans to save $5 every day, how much money will Janae have in her saving
Akimi4 [234]

Janae will have $ 95 in her account after 10 days.

<h3>What is an Arithmetic Progression?</h3>

A sequence of numbers that has a fixed common difference between any two consecutive numbers is called an arithmetic progression (A.P.)

Given,

Amount in Janae's account = $ 50

Amount she wishes to save for 10 days = $ 5

This scenario models an arithmetic progression(A.P)

In an A.P,

a _n = a + (n-1)d

where a _n = nth term, a is the first term, n is the no. of terms and d is the common difference.

In this question, a = 50, n = 10, d = 5 and we have to find out a _n

Therefore, a _n = 50 + (10-1)x5

                         = 50 + 45 = 95

Answer:- Janae will have $ 95 in her account after 10 days.

To learn more about arithmetic progression, refer to:

brainly.com/question/24191546

#SPJ10

8 0
1 year ago
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