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ExtremeBDS [4]
3 years ago
13

2sin^2 2x=2 In the domain [0, 2pi)

Mathematics
1 answer:
djverab [1.8K]3 years ago
8 0
Please type this as 2(sin 2x)^2=2      <span>2sin^2 2x=2 is confusing.

Reducing this expression:  (sin 2x)^2 = 1

Taking the sqrt of both sides, sin 2x = plus or minus 1

If sin 2x = 1, then 2x must be pi/2 or 3pi/2, and so x must be pi/4 or 3pi/4.

Now you do this for sin 2x = -1.</span>
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List the perfect squares that are between 25 and 100.
Aleks04 [339]

Perfect squares are rational numbers multiplied by themselves. Here are the perfect squares between 25 and 100:

5*5=25

6*6=36

7*7=49

8*8=64

9*9=81

10*10=100

Hope this helps :)

7 0
3 years ago
Read 2 more answers
Can you solve the system of equation using substitution y=x+8 <br> X+y=2
Vsevolod [243]
X + y = 2
Substitute x + 8 into y
x + x + 8 = 2
2x + 8 =2
(Subtract 8 from both sides)
2x = -6
(Divide both sides by 2)
x = -3

Subsitute x = -3 into either equation to find y
x + y = 2
-3 + y = 2
(Add 3 to both sides)
y = 2 + 3
y = 5

Or y can be solved for using:
y = x + 8
y = -3 + 8
y = 5
8 0
4 years ago
Of regular movie goers, 40% watch romantic movies, 60% watch action movies, and 24% watch both types. Are watching romantic movi
Scilla [17]

Answer:

depend on watching action movies

Step-by-step explanation:

because most watch action

8 0
3 years ago
Evaluate the expression if a = 9 and b = 2. 5(a 3b) 20 51 70 75
devlian [24]
5(a + 3b) = 5(9 + 3(2)) = 5(9 + 6) = 5(15) = 75
5 0
3 years ago
Jay gas $8 he wants to buy a book gir $7.50 the sales tax 6% does he have enough money
Reil [10]
6%=0.06
if you want to know how much he paid for the sales taxes you multiply 7.5 by 0.06 
7.5 . 0.06= 0.45
7.5+0.45=7.95
8>7.95
Jay have enough money to buy the book
8 0
3 years ago
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